80258579242 has 4 divisors (see below), whose sum is σ = 120387868866. Its totient is φ = 40129289620.

The previous prime is 80258579239. The next prime is 80258579251. The reversal of 80258579242 is 24297585208.

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., 40888479681 + 39370099561 = 202209^2 + 198419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80258579242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20064644809 + ... + 20064644812.

Almost surely, 2^80258579242 is an apocalyptic number.

80258579242 is a deficient number, since it is larger than the sum of its proper divisors (40129289624).

80258579242 is a wasteful number, since it uses less digits than its factorization.

80258579242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40129289623.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 80258579242 in words is "eighty billion, two hundred fifty-eight million, five hundred seventy-nine thousand, two hundred forty-two".