77179399161 has 8 divisors (see below), whose sum is σ = 104355244224. Its totient is φ = 50728243440.

The previous prime is 77179399153. The next prime is 77179399181. The reversal of 77179399161 is 16199397177.

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

It is not a de Polignac number, because 77179399161 - 2³ = 77179399153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77179399095 and 77179399104.

It is not an unprimeable number, because it can be changed into a prime (77179399181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181172086 + ... + 181172511.

It is an arithmetic number, because the mean of its divisors is an integer number (13044405528).

Almost surely, 2^77179399161 is an apocalyptic number.

77179399161 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

77179399161 is a deficient number, since it is larger than the sum of its proper divisors (27175845063).

77179399161 is a wasteful number, since it uses less digits than its factorization.

77179399161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362344671.

The product of its digits is 4500846, while the sum is 60.

The spelling of 77179399161 in words is "seventy-seven billion, one hundred seventy-nine million, three hundred ninety-nine thousand, one hundred sixty-one".