87645081396 has 24 divisors (see below), whose sum is σ = 204879072160. Its totient is φ = 29161615392.

The previous prime is 87645081379. The next prime is 87645081397. The reversal of 87645081396 is 69318054678.

It is a super-2 number, since 2×87645081396² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87645081397) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6669631 + ... + 6682758.

Almost surely, 2^87645081396 is an apocalyptic number.

It is an amenable number.

87645081396 is an abundant number, since it is smaller than the sum of its proper divisors (117233990764).

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

87645081396 is a wasteful number, since it uses less digits than its factorization.

87645081396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352943 (or 13352941 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 87645081396 in words is "eighty-seven billion, six hundred forty-five million, eighty-one thousand, three hundred ninety-six".