10639989421425 has 192 divisors, whose sum is σ = 24062738219520. Its totient is φ = 4488711552000.

The previous prime is 10639989421381. The next prime is 10639989421433. The reversal of 10639989421425 is 52412498993601.

10639989421425 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 99 + 89 + 42 + 1 + 425 = 666.

It is not a de Polignac number, because 10639989421425 - 2⁷ = 10639989421297 is a prime.

It is a super-2 number, since 2×10639989421425² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 271540335 + ... + 271579515.

It is an arithmetic number, because the mean of its divisors is an integer number (125326761560).

Almost surely, 2^{10639989421425} is an apocalyptic number.

10639989421425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10639989421425 is an abundant number, since it is smaller than the sum of its proper divisors (13422748798095).

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

10639989421425 is a wasteful number, since it uses less digits than its factorization.

10639989421425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43641 (or 43630 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 10639989421425 in words is "ten trillion, six hundred thirty-nine billion, nine hundred eighty-nine million, four hundred twenty-one thousand, four hundred twenty-five".