31442871590 has 32 divisors (see below), whose sum is σ = 61052364576. Its totient is φ = 11590329600.

The previous prime is 31442871557. The next prime is 31442871623. The reversal of 31442871590 is 9517824413.

It is an interprime number because it is at equal distance from previous prime (31442871557) and next prime (31442871623).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123092 + ... + 279351.

It is an arithmetic number, because the mean of its divisors is an integer number (1907886393).

Almost surely, 2^31442871590 is an apocalyptic number.

31442871590 is a deficient number, since it is larger than the sum of its proper divisors (29609492986).

31442871590 is a wasteful number, since it uses less digits than its factorization.

31442871590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403064.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 31442871590 in words is "thirty-one billion, four hundred forty-two million, eight hundred seventy-one thousand, five hundred ninety".