79026767690 has 48 divisors (see below), whose sum is σ = 155763048600. Its totient is φ = 28851204096.

The previous prime is 79026767671. The next prime is 79026767737. The reversal of 79026767690 is 9676762097.

It is a Cunningham number, because it is equal to 281117²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 16445241121 + 62581526569 = 128239^2 + 250163^2 .

It is a super-2 number, since 2×79026767690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112295 + ... + 413114.

Almost surely, 2^79026767690 is an apocalyptic number.

79026767690 is a deficient number, since it is larger than the sum of its proper divisors (76736280910).

79026767690 is a wasteful number, since it uses less digits than its factorization.

79026767690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525531 (or 525518 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 59.

The spelling of 79026767690 in words is "seventy-nine billion, twenty-six million, seven hundred sixty-seven thousand, six hundred ninety".