77272801049 has 16 divisors (see below), whose sum is σ = 78708188160. Its totient is φ = 75850419840.

The previous prime is 77272801027. The next prime is 77272801159. The reversal of 77272801049 is 94010827277.

It is not a de Polignac number, because 77272801049 - 2²⁰ = 77271752473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77272800994 and 77272801012.

It is not an unprimeable number, because it can be changed into a prime (77272801009) 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, 15802997 + ... + 15807885.

It is an arithmetic number, because the mean of its divisors is an integer number (4919261760).

Almost surely, 2^77272801049 is an apocalyptic number.

It is an amenable number.

77272801049 is a deficient number, since it is larger than the sum of its proper divisors (1435387111).

77272801049 is a wasteful number, since it uses less digits than its factorization.

77272801049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 77272801049 in words is "seventy-seven billion, two hundred seventy-two million, eight hundred one thousand, forty-nine".