973781772125 has 8 divisors (see below), whose sum is σ = 1215279651768. Its totient is φ = 779025417600.

The previous prime is 973781772083. The next prime is 973781772133. The reversal of 973781772125 is 521277187379.

It can be written as a sum of positive squares in 4 ways, for example, as 26112620836 + 947669151289 = 161594^2 + 973483^2 .

It is not a de Polignac number, because 973781772125 - 2²⁰ = 973780723549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895126964 + ... + 3895127213.

It is an arithmetic number, because the mean of its divisors is an integer number (151909956471).

Almost surely, 2^973781772125 is an apocalyptic number.

It is an amenable number.

973781772125 is a deficient number, since it is larger than the sum of its proper divisors (241497879643).

973781772125 is an equidigital number, since it uses as much as digits as its factorization.

973781772125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790254192 (or 7790254182 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 59.

The spelling of 973781772125 in words is "nine hundred seventy-three billion, seven hundred eighty-one million, seven hundred seventy-two thousand, one hundred twenty-five".