31474747513 has 16 divisors (see below), whose sum is σ = 35560581120. Its totient is φ = 27610147600.

The previous prime is 31474747481. The next prime is 31474747553. The reversal of 31474747513 is 31574747413.

It is a cyclic number.

It is not a de Polignac number, because 31474747513 - 2⁵ = 31474747481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31474747553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392023 + ... + 465436.

It is an arithmetic number, because the mean of its divisors is an integer number (2222536320).

Almost surely, 2^31474747513 is an apocalyptic number.

It is an amenable number.

31474747513 is a deficient number, since it is larger than the sum of its proper divisors (4085833607).

31474747513 is a wasteful number, since it uses less digits than its factorization.

31474747513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857588.

The product of its digits is 987840, while the sum is 46.

The spelling of 31474747513 in words is "thirty-one billion, four hundred seventy-four million, seven hundred forty-seven thousand, five hundred thirteen".