31339235949 has 32 divisors (see below), whose sum is σ = 51627079680. Its totient is φ = 16507063872.

The previous prime is 31339235933. The next prime is 31339235953. The reversal of 31339235949 is 94953293313.

It is not a de Polignac number, because 31339235949 - 2⁴ = 31339235933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31339235989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1046649 + ... + 1076174.

It is an arithmetic number, because the mean of its divisors is an integer number (1613346240).

Almost surely, 2^31339235949 is an apocalyptic number.

It is an amenable number.

31339235949 is a deficient number, since it is larger than the sum of its proper divisors (20287843731).

31339235949 is a wasteful number, since it uses less digits than its factorization.

31339235949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122889.

The product of its digits is 2361960, while the sum is 51.

The spelling of 31339235949 in words is "thirty-one billion, three hundred thirty-nine million, two hundred thirty-five thousand, nine hundred forty-nine".