49287941640 has 384 divisors, whose sum is σ = 193982947200. Its totient is φ = 11096870400.

The previous prime is 49287941617. The next prime is 49287941657. The reversal of 49287941640 is 4614978294.

49287941640 is a `hidden beast` number, since 492 + 8 + 7 + 94 + 1 + 64 + 0 = 666.

It is a super-2 number, since 2×49287941640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 95 ways as a sum of consecutive naturals, for example, 3538690 + ... + 3552590.

It is an arithmetic number, because the mean of its divisors is an integer number (505163925).

Almost surely, 2^49287941640 is an apocalyptic number.

49287941640 is a gapful number since it is divisible by the number (40) 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 49287941640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96991473600).

49287941640 is an abundant number, since it is smaller than the sum of its proper divisors (144695005560).

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

49287941640 is a wasteful number, since it uses less digits than its factorization.

49287941640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14002 (or 13985 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 49287941640 in words is "forty-nine billion, two hundred eighty-seven million, nine hundred forty-one thousand, six hundred forty".