79825791475 has 6 divisors (see below), whose sum is σ = 98983981460. Its totient is φ = 63860633160.

The previous prime is 79825791469. The next prime is 79825791491. The reversal of 79825791475 is 57419752897.

It is not a de Polignac number, because 79825791475 - 2⁷ = 79825791347 is a prime.

It is a super-2 number, since 2×79825791475² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 1596515805 + ... + 1596515854.

Almost surely, 2^79825791475 is an apocalyptic number.

79825791475 is a deficient number, since it is larger than the sum of its proper divisors (19158189985).

79825791475 is a wasteful number, since it uses less digits than its factorization.

79825791475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193031669 (or 3193031664 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 64.

The spelling of 79825791475 in words is "seventy-nine billion, eight hundred twenty-five million, seven hundred ninety-one thousand, four hundred seventy-five".