77023755145 has 16 divisors (see below), whose sum is σ = 92616265728. Its totient is φ = 61493928640.

The previous prime is 77023755089. The next prime is 77023755173. The reversal of 77023755145 is 54155732077.

It is not a de Polignac number, because 77023755145 - 2³⁵ = 42664016777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77023755095 and 77023755104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8688015 + ... + 8696875.

It is an arithmetic number, because the mean of its divisors is an integer number (5788516608).

Almost surely, 2^77023755145 is an apocalyptic number.

It is an amenable number.

77023755145 is a deficient number, since it is larger than the sum of its proper divisors (15592510583).

77023755145 is a wasteful number, since it uses less digits than its factorization.

77023755145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12200.

The product of its (nonzero) digits is 1029000, while the sum is 46.

The spelling of 77023755145 in words is "seventy-seven billion, twenty-three million, seven hundred fifty-five thousand, one hundred forty-five".