31315040590 has 32 divisors (see below), whose sum is σ = 57111969600. Its totient is φ = 12361227264.

The previous prime is 31315040543. The next prime is 31315040591. The reversal of 31315040590 is 9504051313.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315040591) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 292279 + ... + 384781.

It is an arithmetic number, because the mean of its divisors is an integer number (1784749050).

Almost surely, 2^31315040590 is an apocalyptic number.

31315040590 is a deficient number, since it is larger than the sum of its proper divisors (25796929010).

31315040590 is a wasteful number, since it uses less digits than its factorization.

31315040590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92956.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 31315040590 in words is "thirty-one billion, three hundred fifteen million, forty thousand, five hundred ninety".