90981258412 has 24 divisors (see below), whose sum is σ = 174591465552. Its totient is φ = 41140838400.

The previous prime is 90981258409. The next prime is 90981258463. The reversal of 90981258412 is 21485218909.

It is a super-2 number, since 2×90981258412² (a number of 23 digits) contains 22 as substring.

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, 5348389 + ... + 5365372.

It is an arithmetic number, because the mean of its divisors is an integer number (7274644398).

Almost surely, 2^90981258412 is an apocalyptic number.

It is an amenable number.

90981258412 is a deficient number, since it is larger than the sum of its proper divisors (83610207140).

90981258412 is a wasteful number, since it uses less digits than its factorization.

90981258412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713969 (or 10713967 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 90981258412 in words is "ninety billion, nine hundred eighty-one million, two hundred fifty-eight thousand, four hundred twelve".