1630807986840 has 256 divisors, whose sum is σ = 5153578214400. Its totient is φ = 412041062400.

The previous prime is 1630807986839. The next prime is 1630807986887. The reversal of 1630807986840 is 486897080361.

It is a super-2 number, since 2×1630807986840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 176853430 + ... + 176862650.

It is an arithmetic number, because the mean of its divisors is an integer number (20131164900).

Almost surely, 2^{1630807986840} is an apocalyptic number.

1630807986840 is a gapful number since it is divisible by the number (10) 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 1630807986840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576789107200).

1630807986840 is an abundant number, since it is smaller than the sum of its proper divisors (3522770227560).

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

1630807986840 is a wasteful number, since it uses less digits than its factorization.

1630807986840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9858 (or 9854 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 1630807986840 in words is "one trillion, six hundred thirty billion, eight hundred seven million, nine hundred eighty-six thousand, eight hundred forty".