79246135987 has 6 divisors (see below), whose sum is σ = 84181881788. Its totient is φ = 74584598304.

The previous prime is 79246135961. The next prime is 79246135993. The reversal of 79246135987 is 78953164297.

It is a de Polignac number, because none of the positive numbers 2^k-79246135987 is a prime.

It is a super-3 number, since 3×79246135987³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79246135937) 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 5 ways as a sum of consecutive naturals, for example, 137103753 + ... + 137104330.

Almost surely, 2^79246135987 is an apocalyptic number.

79246135987 is a deficient number, since it is larger than the sum of its proper divisors (4935745801).

79246135987 is a wasteful number, since it uses less digits than its factorization.

79246135987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274208117 (or 274208100 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 61.

The spelling of 79246135987 in words is "seventy-nine billion, two hundred forty-six million, one hundred thirty-five thousand, nine hundred eighty-seven".