79036651538 has 8 divisors (see below), whose sum is σ = 127674590988. Its totient is φ = 36478454544.

The previous prime is 79036651531. The next prime is 79036651571. The reversal of 79036651538 is 83515663097.

It can be written as a sum of positive squares in 2 ways, for example, as 76736202169 + 2300449369 = 277013^2 + 47963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 79036651538.

It is not an unprimeable number, because it can be changed into a prime (79036651531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519935581 + ... + 1519935632.

Almost surely, 2^79036651538 is an apocalyptic number.

79036651538 is a deficient number, since it is larger than the sum of its proper divisors (48637939450).

79036651538 is a wasteful number, since it uses less digits than its factorization.

79036651538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039871228.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 79036651538 in words is "seventy-nine billion, thirty-six million, six hundred fifty-one thousand, five hundred thirty-eight".