31598494613 has 8 divisors (see below), whose sum is σ = 36849556800. Its totient is φ = 27084423660.

The previous prime is 31598494607. The next prime is 31598494621. The reversal of 31598494613 is 31649489513.

It is not a de Polignac number, because 31598494613 - 2¹⁴ = 31598478229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31598494633) 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, 46061603 + ... + 46062288.

It is an arithmetic number, because the mean of its divisors is an integer number (4606194600).

Almost surely, 2^31598494613 is an apocalyptic number.

It is an amenable number.

31598494613 is a deficient number, since it is larger than the sum of its proper divisors (5251062187).

31598494613 is an frugal number, since it uses more digits than its factorization.

31598494613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92123912 (or 92123898 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The spelling of 31598494613 in words is "thirty-one billion, five hundred ninety-eight million, four hundred ninety-four thousand, six hundred thirteen".