31494013528 has 16 divisors (see below), whose sum is σ = 61618722480. Its totient is φ = 15062354208.

The previous prime is 31494013513. The next prime is 31494013547. The reversal of 31494013528 is 82531049413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85581375 + ... + 85581742.

It is an arithmetic number, because the mean of its divisors is an integer number (3851170155).

Almost surely, 2^31494013528 is an apocalyptic number.

It is an amenable number.

31494013528 is a deficient number, since it is larger than the sum of its proper divisors (30124708952).

31494013528 is a wasteful number, since it uses less digits than its factorization.

31494013528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171163146 (or 171163142 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 31494013528 in words is "thirty-one billion, four hundred ninety-four million, thirteen thousand, five hundred twenty-eight".