79427241018 has 24 divisors (see below), whose sum is σ = 172097715348. Its totient is φ = 26474922432.

The previous prime is 79427241001. The next prime is 79427241031. The reversal of 79427241018 is 81014272497.

It can be written as a sum of positive squares in 2 ways, for example, as 78884024769 + 543216249 = 280863^2 + 23307^2 .

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 877246 + ... + 963542.

Almost surely, 2^79427241018 is an apocalyptic number.

79427241018 is an abundant number, since it is smaller than the sum of its proper divisors (92670474330).

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

79427241018 is a wasteful number, since it uses less digits than its factorization.

79427241018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137438 (or 137435 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 79427241018 in words is "seventy-nine billion, four hundred twenty-seven million, two hundred forty-one thousand, eighteen".