90910000002 has 16 divisors (see below), whose sum is σ = 182978091072. Its totient is φ = 30110318160.

The previous prime is 90909999953. The next prime is 90910000019. The reversal of 90910000002 is 20000001909.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48252774 + ... + 48254657.

It is an arithmetic number, because the mean of its divisors is an integer number (11436130692).

Almost surely, 2^90910000002 is an apocalyptic number.

90910000002 is an abundant number, since it is smaller than the sum of its proper divisors (92068091070).

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

90910000002 is a wasteful number, since it uses less digits than its factorization.

90910000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96507593.

The product of its (nonzero) digits is 162, while the sum is 21.

The spelling of 90910000002 in words is "ninety billion, nine hundred ten million, two", and thus it is an aban number.