80671096779 has 32 divisors (see below), whose sum is σ = 132413159424. Its totient is φ = 42542202240.

The previous prime is 80671096763. The next prime is 80671096813. The reversal of 80671096779 is 97769017608.

It is a happy number.

It is not a de Polignac number, because 80671096779 - 2⁴ = 80671096763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80671096729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1274869 + ... + 1336649.

It is an arithmetic number, because the mean of its divisors is an integer number (4137911232).

Almost surely, 2^80671096779 is an apocalyptic number.

80671096779 is a deficient number, since it is larger than the sum of its proper divisors (51742062645).

80671096779 is a wasteful number, since it uses less digits than its factorization.

80671096779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66587.

The product of its (nonzero) digits is 8001504, while the sum is 60.

The spelling of 80671096779 in words is "eighty billion, six hundred seventy-one million, ninety-six thousand, seven hundred seventy-nine".