31547208079412 has 6 divisors (see below), whose sum is σ = 55207614138978. Its totient is φ = 15773604039704.

The previous prime is 31547208079379. The next prime is 31547208079441. The reversal of 31547208079412 is 21497080274513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28729557120016 + 2817650959396 = 5359996^2 + 1678586^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3943401009923 + ... + 3943401009930.

It is an arithmetic number, because the mean of its divisors is an integer number (9201269023163).

Almost surely, 2^{31547208079412} is an apocalyptic number.

It is an amenable number.

31547208079412 is a deficient number, since it is larger than the sum of its proper divisors (23660406059566).

31547208079412 is a wasteful number, since it uses less digits than its factorization.

31547208079412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886802019857 (or 7886802019855 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 31547208079412 in words is "thirty-one trillion, five hundred forty-seven billion, two hundred eight million, seventy-nine thousand, four hundred twelve".