79285871508 has 24 divisors (see below), whose sum is σ = 185020791648. Its totient is φ = 26425706016.

The previous prime is 79285871503. The next prime is 79285871557. The reversal of 79285871508 is 80517858297.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79285871503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250066 + ... + 470217.

It is an arithmetic number, because the mean of its divisors is an integer number (7709199652).

Almost surely, 2^79285871508 is an apocalyptic number.

It is an amenable number.

79285871508 is an abundant number, since it is smaller than the sum of its proper divisors (105734920140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79285871508 is a wasteful number, since it uses less digits than its factorization.

79285871508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729463 (or 729461 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 60.

The spelling of 79285871508 in words is "seventy-nine billion, two hundred eighty-five million, eight hundred seventy-one thousand, five hundred eight".