99890216927 has 16 divisors (see below), whose sum is σ = 101029248000. Its totient is φ = 98758080960.

The previous prime is 99890216851. The next prime is 99890217013. The reversal of 99890216927 is 72961209899.

It is a cyclic number.

It is not a de Polignac number, because 99890216927 - 2²² = 99886022623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99890216927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99890296927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41637074 + ... + 41639472.

It is an arithmetic number, because the mean of its divisors is an integer number (6314328000).

Almost surely, 2^99890216927 is an apocalyptic number.

99890216927 is a deficient number, since it is larger than the sum of its proper divisors (1139031073).

99890216927 is a wasteful number, since it uses less digits than its factorization.

99890216927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The spelling of 99890216927 in words is "ninety-nine billion, eight hundred ninety million, two hundred sixteen thousand, nine hundred twenty-seven".