31719335948 has 12 divisors (see below), whose sum is σ = 55540515240. Its totient is φ = 15850617312.

The previous prime is 31719335941. The next prime is 31719335953. The reversal of 31719335948 is 84953391713.

It is a super-2 number, since 2×31719335948² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31719335948.

It is not an unprimeable number, because it can be changed into a prime (31719335941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254778 + ... + 2268801.

It is an arithmetic number, because the mean of its divisors is an integer number (4628376270).

Almost surely, 2^31719335948 is an apocalyptic number.

It is an amenable number.

31719335948 is a deficient number, since it is larger than the sum of its proper divisors (23821179292).

31719335948 is a wasteful number, since it uses less digits than its factorization.

31719335948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525336 (or 4525334 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The spelling of 31719335948 in words is "thirty-one billion, seven hundred nineteen million, three hundred thirty-five thousand, nine hundred forty-eight".