1973165926672 has 20 divisors (see below), whose sum is σ = 3954836879820. Its totient is φ = 952562860928.

The previous prime is 1973165926661. The next prime is 1973165926687. The reversal of 1973165926672 is 2766295613791.

It can be written as a sum of positive squares in 2 ways, for example, as 1289442007296 + 683723919376 = 1135536^2 + 826876^2 .

It is a super-3 number, since 3×1973165926672³ (a number of 38 digits) contains 333 as substring.

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, 2126255923 + ... + 2126256850.

It is an arithmetic number, because the mean of its divisors is an integer number (197741843991).

Almost surely, 2^{1973165926672} is an apocalyptic number.

It is an amenable number.

1973165926672 is an abundant number, since it is smaller than the sum of its proper divisors (1981670953148).

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

1973165926672 is a wasteful number, since it uses less digits than its factorization.

1973165926672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252512810 (or 4252512804 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 64.

The spelling of 1973165926672 in words is "one trillion, nine hundred seventy-three billion, one hundred sixty-five million, nine hundred twenty-six thousand, six hundred seventy-two".