31534657051 has 8 divisors (see below), whose sum is σ = 32054448384. Its totient is φ = 31014957120.

The previous prime is 31534656983. The next prime is 31534657103. The reversal of 31534657051 is 15075643513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-31534657051 is a prime.

It is a super-3 number, since 3×31534657051³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31534656995 and 31534657013.

It is not an unprimeable number, because it can be changed into a prime (31534651051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260870 + ... + 1285636.

It is an arithmetic number, because the mean of its divisors is an integer number (4006806048).

Almost surely, 2^31534657051 is an apocalyptic number.

31534657051 is a deficient number, since it is larger than the sum of its proper divisors (519791333).

31534657051 is a wasteful number, since it uses less digits than its factorization.

31534657051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45701.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 31534657051 in words is "thirty-one billion, five hundred thirty-four million, six hundred fifty-seven thousand, fifty-one".