79709598425 has 12 divisors (see below), whose sum is σ = 98986787580. Its totient is φ = 63672913920.

The previous prime is 79709598407. The next prime is 79709598443. The reversal of 79709598425 is 52489590797.

It is an interprime number because it is at equal distance from previous prime (79709598407) and next prime (79709598443).

It can be written as a sum of positive squares in 6 ways, for example, as 1998000601 + 77711597824 = 44699^2 + 278768^2 .

It is a de Polignac number, because none of the positive numbers 2^k-79709598425 is a prime.

It is a super-3 number, since 3×79709598425³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2351960 + ... + 2385609.

It is an arithmetic number, because the mean of its divisors is an integer number (8248898965).

Almost surely, 2^79709598425 is an apocalyptic number.

It is an amenable number.

79709598425 is a deficient number, since it is larger than the sum of its proper divisors (19277189155).

79709598425 is a wasteful number, since it uses less digits than its factorization.

79709598425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738252 (or 4738247 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 65.

The spelling of 79709598425 in words is "seventy-nine billion, seven hundred nine million, five hundred ninety-eight thousand, four hundred twenty-five".