1972318712 has 64 divisors (see below), whose sum is σ = 4791091200. Its totient is φ = 739186560.

The previous prime is 1972318709. The next prime is 1972318723. The reversal of 1972318712 is 2178132791.

It is a happy number.

It is a super-2 number, since 2×1972318712² = 7780082203410677888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1972318712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57464 + ... + 85127.

It is an arithmetic number, because the mean of its divisors is an integer number (74860800).

Almost surely, 2^1972318712 is an apocalyptic number.

It is an amenable number.

1972318712 is an abundant number, since it is smaller than the sum of its proper divisors (2818772488).

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

1972318712 is a wasteful number, since it uses less digits than its factorization.

1972318712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142636 (or 142632 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 1972318712 is about 44410.7949940102. The cubic root of 1972318712 is about 1254.0813183295.

The spelling of 1972318712 in words is "one billion, nine hundred seventy-two million, three hundred eighteen thousand, seven hundred twelve".