31396473057 has 8 divisors (see below), whose sum is σ = 42049686784. Its totient is φ = 20837120688.

The previous prime is 31396473047. The next prime is 31396473061. The reversal of 31396473057 is 75037469313.

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

It is not a de Polignac number, because 31396473057 - 2¹⁰ = 31396472033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31396472997 and 31396473015.

It is not an unprimeable number, because it can be changed into a prime (31396473007) 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, 23464558 + ... + 23465895.

It is an arithmetic number, because the mean of its divisors is an integer number (5256210848).

Almost surely, 2^31396473057 is an apocalyptic number.

It is an amenable number.

31396473057 is a deficient number, since it is larger than the sum of its proper divisors (10653213727).

31396473057 is a wasteful number, since it uses less digits than its factorization.

31396473057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46930679.

The product of its (nonzero) digits is 1428840, while the sum is 48.

The spelling of 31396473057 in words is "thirty-one billion, three hundred ninety-six million, four hundred seventy-three thousand, fifty-seven".