31797666044 has 6 divisors (see below), whose sum is σ = 55645915584. Its totient is φ = 15898833020.

The previous prime is 31797666041. The next prime is 31797666067. The reversal of 31797666044 is 44066679713.

It is a happy number.

It is a super-2 number, since 2×31797666044² (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 (31797666041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3974708252 + ... + 3974708259.

It is an arithmetic number, because the mean of its divisors is an integer number (9274319264).

Almost surely, 2^31797666044 is an apocalyptic number.

It is an amenable number.

31797666044 is a deficient number, since it is larger than the sum of its proper divisors (23848249540).

31797666044 is a wasteful number, since it uses less digits than its factorization.

31797666044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949416515 (or 7949416513 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 31797666044 in words is "thirty-one billion, seven hundred ninety-seven million, six hundred sixty-six thousand, forty-four".