90631490929 has 16 divisors (see below), whose sum is σ = 107558680320. Its totient is φ = 74751171840.

The previous prime is 90631490923. The next prime is 90631491017. The reversal of 90631490929 is 92909413609.

It is a cyclic number.

It is not a de Polignac number, because 90631490929 - 2³ = 90631490921 is a prime.

It is a super-3 number, since 3×90631490929³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (90631490921) 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, 2141989 + ... + 2183890.

It is an arithmetic number, because the mean of its divisors is an integer number (6722417520).

Almost surely, 2^90631490929 is an apocalyptic number.

It is an amenable number.

90631490929 is a deficient number, since it is larger than the sum of its proper divisors (16927189391).

90631490929 is a wasteful number, since it uses less digits than its factorization.

90631490929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326000.

The product of its (nonzero) digits is 944784, while the sum is 52.

The spelling of 90631490929 in words is "ninety billion, six hundred thirty-one million, four hundred ninety thousand, nine hundred twenty-nine".