94993447587840 has 624 divisors, whose sum is σ = 336540799296000. Its totient is φ = 24773110530048.

The previous prime is 94993447587823. The next prime is 94993447587893. The reversal of 94993447587840 is 4878574439949.

94993447587840 is a `hidden beast` number, since 9 + 4 + 9 + 9 + 34 + 475 + 8 + 78 + 40 = 666.

It is a super-2 number, since 2×94993447587840² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 94993447587840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13419045421 + ... + 13419052499.

It is an arithmetic number, because the mean of its divisors is an integer number (539328204000).

Almost surely, 2^{94993447587840} is an apocalyptic number.

94993447587840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 94993447587840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168270399648000).

94993447587840 is an abundant number, since it is smaller than the sum of its proper divisors (241547351708160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

94993447587840 is a wasteful number, since it uses less digits than its factorization.

94993447587840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710 (or 8685 counting only the distinct ones).

The product of its (nonzero) digits is 8778792960, while the sum is 81.

The spelling of 94993447587840 in words is "ninety-four trillion, nine hundred ninety-three billion, four hundred forty-seven million, five hundred eighty-seven thousand, eight hundred forty".