31290523448 has 16 divisors (see below), whose sum is σ = 58714777680. Its totient is φ = 15633249408.

The previous prime is 31290523447. The next prime is 31290523469. The reversal of 31290523448 is 84432509213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31290523441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490465 + ... + 1511312.

It is an arithmetic number, because the mean of its divisors is an integer number (3669673605).

Almost surely, 2^31290523448 is an apocalyptic number.

It is an amenable number.

31290523448 is a deficient number, since it is larger than the sum of its proper divisors (27424254232).

31290523448 is a wasteful number, since it uses less digits than its factorization.

31290523448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003086 (or 3003082 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 31290523448 in words is "thirty-one billion, two hundred ninety million, five hundred twenty-three thousand, four hundred forty-eight".