71779316458 has 8 divisors (see below), whose sum is σ = 112350234528. Its totient is φ = 34329238284.

The previous prime is 71779316449. The next prime is 71779316503. The reversal of 71779316458 is 85461397717.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780209916 + ... + 780210007.

It is an arithmetic number, because the mean of its divisors is an integer number (14043779316).

Almost surely, 2^71779316458 is an apocalyptic number.

71779316458 is a deficient number, since it is larger than the sum of its proper divisors (40570918070).

71779316458 is a wasteful number, since it uses less digits than its factorization.

71779316458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560419948.

The product of its digits is 8890560, while the sum is 58.

The spelling of 71779316458 in words is "seventy-one billion, seven hundred seventy-nine million, three hundred sixteen thousand, four hundred fifty-eight".