31061048016 has 80 divisors (see below), whose sum is σ = 80681978880. Its totient is φ = 10296908160.

The previous prime is 31061047999. The next prime is 31061048023. The reversal of 31061048016 is 61084016013.

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, 12881851 + ... + 12884261.

It is an arithmetic number, because the mean of its divisors is an integer number (1008524736).

Almost surely, 2^31061048016 is an apocalyptic number.

It is an amenable number.

31061048016 is an abundant number, since it is smaller than the sum of its proper divisors (49620930864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31061048016 is a wasteful number, since it uses less digits than its factorization.

31061048016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784 (or 3778 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 31061048016 in words is "thirty-one billion, sixty-one million, forty-eight thousand, sixteen".