79761837418 has 4 divisors (see below), whose sum is σ = 119642756130. Its totient is φ = 39880918708.

The previous prime is 79761837371. The next prime is 79761837427. The reversal of 79761837418 is 81473816797.

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., 53635317649 + 26126519769 = 231593^2 + 161637^2 .

It is a super-4 number, since 4×79761837418⁴ (a number of 45 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19940459353 + ... + 19940459356.

Almost surely, 2^79761837418 is an apocalyptic number.

79761837418 is a deficient number, since it is larger than the sum of its proper divisors (39880918712).

79761837418 is a wasteful number, since it uses less digits than its factorization.

79761837418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39880918711.

The product of its digits is 14224896, while the sum is 61.

The spelling of 79761837418 in words is "seventy-nine billion, seven hundred sixty-one million, eight hundred thirty-seven thousand, four hundred eighteen".