79811727755 has 16 divisors (see below), whose sum is σ = 101417909760. Its totient is φ = 60087570432.

The previous prime is 79811727733. The next prime is 79811727757. The reversal of 79811727755 is 55772711897.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79811727755 - 2¹⁸ = 79811465611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79811727694 and 79811727703.

It is not an unprimeable number, because it can be changed into a prime (79811727757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935702 + ... + 1017428.

It is an arithmetic number, because the mean of its divisors is an integer number (6338619360).

Almost surely, 2^79811727755 is an apocalyptic number.

79811727755 is a deficient number, since it is larger than the sum of its proper divisors (21606182005).

79811727755 is a wasteful number, since it uses less digits than its factorization.

79811727755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93238.

The product of its digits is 8643600, while the sum is 59.

The spelling of 79811727755 in words is "seventy-nine billion, eight hundred eleven million, seven hundred twenty-seven thousand, seven hundred fifty-five".