90713431268 has 24 divisors (see below), whose sum is σ = 158920506360. Its totient is φ = 45307607040.

The previous prime is 90713431253. The next prime is 90713431331. The reversal of 90713431268 is 86213431709.

It can be written as a sum of positive squares in 4 ways, for example, as 30650205184 + 60063226084 = 175072^2 + 245078^2 .

It is a super-2 number, since 2×90713431268² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24455798 + ... + 24459506.

It is an arithmetic number, because the mean of its divisors is an integer number (6621687765).

Almost surely, 2^90713431268 is an apocalyptic number.

It is an amenable number.

90713431268 is a deficient number, since it is larger than the sum of its proper divisors (68207075092).

90713431268 is a wasteful number, since it uses less digits than its factorization.

90713431268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8687 (or 8685 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 90713431268 in words is "ninety billion, seven hundred thirteen million, four hundred thirty-one thousand, two hundred sixty-eight".