3171920287616 has 32 divisors (see below), whose sum is σ = 6347396596800. Its totient is φ = 1578848200704.

The previous prime is 3171920287609. The next prime is 3171920287673. The reversal of 3171920287616 is 6167820291713.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×3171920287616² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55533401 + ... + 55590488.

It is an arithmetic number, because the mean of its divisors is an integer number (198356143650).

Almost surely, 2^{3171920287616} is an apocalyptic number.

It is an amenable number.

3171920287616 is an abundant number, since it is smaller than the sum of its proper divisors (3175476309184).

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

3171920287616 is a wasteful number, since it uses less digits than its factorization.

3171920287616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111124126 (or 111124114 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 3171920287616 in words is "three trillion, one hundred seventy-one billion, nine hundred twenty million, two hundred eighty-seven thousand, six hundred sixteen".