31552354972 has 24 divisors (see below), whose sum is σ = 55397277936. Its totient is φ = 15724612608.

The previous prime is 31552354961. The next prime is 31552354973. The reversal of 31552354972 is 27945325513.

It is a super-2 number, since 2×31552354972² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31552354973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3019068 + ... + 3029500.

It is an arithmetic number, because the mean of its divisors is an integer number (2308219914).

Almost surely, 2^31552354972 is an apocalyptic number.

It is an amenable number.

31552354972 is a deficient number, since it is larger than the sum of its proper divisors (23844922964).

31552354972 is a wasteful number, since it uses less digits than its factorization.

31552354972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837 (or 12835 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 46.

The spelling of 31552354972 in words is "thirty-one billion, five hundred fifty-two million, three hundred fifty-four thousand, nine hundred seventy-two".