1962549173972 has 48 divisors (see below), whose sum is σ = 3669587120640. Its totient is φ = 915652073952.

The previous prime is 1962549173971. The next prime is 1962549173983. The reversal of 1962549173972 is 2793719452691.

It is a junction number, because it is equal to n+sod(n) for n = 1962549173899 and 1962549173908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1962549173971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66013103 + ... + 66042825.

It is an arithmetic number, because the mean of its divisors is an integer number (76449731680).

Almost surely, 2^{1962549173972} is an apocalyptic number.

It is an amenable number.

1962549173972 is a deficient number, since it is larger than the sum of its proper divisors (1707037946668).

1962549173972 is a wasteful number, since it uses less digits than its factorization.

1962549173972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42780 (or 42778 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 65.

The spelling of 1962549173972 in words is "one trillion, nine hundred sixty-two billion, five hundred forty-nine million, one hundred seventy-three thousand, nine hundred seventy-two".