99987696876480 has 1792 divisors, whose sum is σ = 396353687961600. Its totient is φ = 20851723468800.

The previous prime is 99987696876401. The next prime is 99987696876481. The reversal of 99987696876480 is 8467869678999.

It is a Harshad number since it is a multiple of its sum of digits (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99987696876481) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 95135771955 + ... + 95135773005.

Almost surely, 2^{99987696876480} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99987696876480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198176843980800).

99987696876480 is an abundant number, since it is smaller than the sum of its proper divisors (296365991085120).

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

99987696876480 is a wasteful number, since it uses less digits than its factorization.

99987696876480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 142216445952, while the sum is 96.

The spelling of 99987696876480 in words is "ninety-nine trillion, nine hundred eighty-seven billion, six hundred ninety-six million, eight hundred seventy-six thousand, four hundred eighty".