31970155044 has 24 divisors (see below), whose sum is σ = 77003385088. Its totient is φ = 10312953120.

The previous prime is 31970155037. The next prime is 31970155111. The reversal of 31970155044 is 44055107913.

It is a super-3 number, since 3×31970155044³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31970154993 and 31970155011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42970267 + ... + 42971010.

Almost surely, 2^31970155044 is an apocalyptic number.

It is an amenable number.

31970155044 is an abundant number, since it is smaller than the sum of its proper divisors (45033230044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31970155044 is a wasteful number, since it uses less digits than its factorization.

31970155044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85941315 (or 85941313 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 31970155044 in words is "thirty-one billion, nine hundred seventy million, one hundred fifty-five thousand, forty-four".