79699954282474 has 4 divisors (see below), whose sum is σ = 119549931423714. Its totient is φ = 39849977141236.

The previous prime is 79699954282469. The next prime is 79699954282493. The reversal of 79699954282474 is 47428245999697.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54299110276849 + 25400844005625 = 7368793^2 + 5039925^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79699954282391 and 79699954282400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19924988570617 + ... + 19924988570620.

Almost surely, 2^{79699954282474} is an apocalyptic number.

79699954282474 is a deficient number, since it is larger than the sum of its proper divisors (39849977141240).

79699954282474 is a wasteful number, since it uses less digits than its factorization.

79699954282474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39849977141239.

The product of its digits is 19752284160, while the sum is 85.

The spelling of 79699954282474 in words is "seventy-nine trillion, six hundred ninety-nine billion, nine hundred fifty-four million, two hundred eighty-two thousand, four hundred seventy-four".