79449236849525 has 24 divisors (see below), whose sum is σ = 98746713776064. Its totient is φ = 63411338390400.

The previous prime is 79449236849509. The next prime is 79449236849597. The reversal of 79449236849525 is 52594863294497.

It is not a de Polignac number, because 79449236849525 - 2⁴ = 79449236849509 is a prime.

It is a super-2 number, since 2×79449236849525² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25796720 + ... + 28711830.

It is an arithmetic number, because the mean of its divisors is an integer number (4114446407336).

Almost surely, 2^{79449236849525} is an apocalyptic number.

It is an amenable number.

79449236849525 is a deficient number, since it is larger than the sum of its proper divisors (19297476926539).

79449236849525 is a wasteful number, since it uses less digits than its factorization.

79449236849525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917661 (or 2917656 counting only the distinct ones).

The product of its digits is 4702924800, while the sum is 77.

The spelling of 79449236849525 in words is "seventy-nine trillion, four hundred forty-nine billion, two hundred thirty-six million, eight hundred forty-nine thousand, five hundred twenty-five".