99998572680 has 96 divisors (see below), whose sum is σ = 337032259200. Its totient is φ = 26666283456.

The previous prime is 99998572669. The next prime is 99998572691. The reversal of 99998572680 is 8627589999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99998572669) and next prime (99998572691).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 99998572599 and 99998572608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5134240 + ... + 5153679.

It is an arithmetic number, because the mean of its divisors is an integer number (3510752700).

Almost surely, 2^99998572680 is an apocalyptic number.

99998572680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99998572680 is an abundant number, since it is smaller than the sum of its proper divisors (237033686520).

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

99998572680 is a wasteful number, since it uses less digits than its factorization.

99998572680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287945 (or 10287929 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 72.

The spelling of 99998572680 in words is "ninety-nine billion, nine hundred ninety-eight million, five hundred seventy-two thousand, six hundred eighty".