775057428641 has 32 divisors (see below), whose sum is σ = 820728720000. Its totient is φ = 730859576832.

The previous prime is 775057428637. The next prime is 775057428653. The reversal of 775057428641 is 146824750577.

It is a cyclic number.

It is not a de Polignac number, because 775057428641 - 2² = 775057428637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (775057428611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178623650 + ... + 178627988.

It is an arithmetic number, because the mean of its divisors is an integer number (25647772500).

Almost surely, 2^775057428641 is an apocalyptic number.

It is an amenable number.

775057428641 is a deficient number, since it is larger than the sum of its proper divisors (45671291359).

775057428641 is a wasteful number, since it uses less digits than its factorization.

775057428641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201.

The product of its (nonzero) digits is 13171200, while the sum is 56.

The spelling of 775057428641 in words is "seven hundred seventy-five billion, fifty-seven million, four hundred twenty-eight thousand, six hundred forty-one".