77045716426217 has 32 divisors (see below), whose sum is σ = 101140776990720. Its totient is φ = 56860020040320.

The previous prime is 77045716426171. The next prime is 77045716426223. The reversal of 77045716426217 is 71262461754077.

It is not a de Polignac number, because 77045716426217 - 2²⁸ = 77045447990761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77045716426277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2071973 + ... + 12585090.

It is an arithmetic number, because the mean of its divisors is an integer number (3160649280960).

Almost surely, 2^{77045716426217} is an apocalyptic number.

77045716426217 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

77045716426217 is a deficient number, since it is larger than the sum of its proper divisors (24095060564503).

77045716426217 is a wasteful number, since it uses less digits than its factorization.

77045716426217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14660693.

The product of its (nonzero) digits is 27659520, while the sum is 59.

The spelling of 77045716426217 in words is "seventy-seven trillion, forty-five billion, seven hundred sixteen million, four hundred twenty-six thousand, two hundred seventeen".