80876723049 has 32 divisors (see below), whose sum is σ = 132381354240. Its totient is φ = 48539817216.

The previous prime is 80876723017. The next prime is 80876723077. The reversal of 80876723049 is 94032767808.

It is not a de Polignac number, because 80876723049 - 2⁵ = 80876723017 is a prime.

It is a super-2 number, since 2×80876723049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80876722986 and 80876723004.

It is not an unprimeable number, because it can be changed into a prime (80876723149) 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, 3819922 + ... + 3841035.

It is an arithmetic number, because the mean of its divisors is an integer number (4136917320).

Almost surely, 2^80876723049 is an apocalyptic number.

It is an amenable number.

80876723049 is a deficient number, since it is larger than the sum of its proper divisors (51504631191).

80876723049 is a wasteful number, since it uses less digits than its factorization.

80876723049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7661006 (or 7661000 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 80876723049 in words is "eighty billion, eight hundred seventy-six million, seven hundred twenty-three thousand, forty-nine".