979770208925 has 6 divisors (see below), whose sum is σ = 1214915059098. Its totient is φ = 783816167120.

The previous prime is 979770208909. The next prime is 979770208927. The reversal of 979770208925 is 529802077979.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8321453284 + 971448755641 = 91222^2 + 985621^2 .

It is not a de Polignac number, because 979770208925 - 2⁴ = 979770208909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979770208927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19595404154 + ... + 19595404203.

It is an arithmetic number, because the mean of its divisors is an integer number (202485843183).

Almost surely, 2^979770208925 is an apocalyptic number.

It is an amenable number.

979770208925 is a deficient number, since it is larger than the sum of its proper divisors (235144850173).

979770208925 is a wasteful number, since it uses less digits than its factorization.

979770208925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39190808367 (or 39190808362 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 65.

The spelling of 979770208925 in words is "nine hundred seventy-nine billion, seven hundred seventy million, two hundred eight thousand, nine hundred twenty-five".