90439960412 has 6 divisors (see below), whose sum is σ = 158269930728. Its totient is φ = 45219980204.

The previous prime is 90439960409. The next prime is 90439960427. The reversal of 90439960412 is 21406993409.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11304995048 + ... + 11304995055.

It is an arithmetic number, because the mean of its divisors is an integer number (26378321788).

Almost surely, 2^90439960412 is an apocalyptic number.

It is an amenable number.

90439960412 is a deficient number, since it is larger than the sum of its proper divisors (67829970316).

90439960412 is a wasteful number, since it uses less digits than its factorization.

90439960412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22609990107 (or 22609990105 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 90439960412 in words is "ninety billion, four hundred thirty-nine million, nine hundred sixty thousand, four hundred twelve".