77233875761 has 16 divisors (see below), whose sum is σ = 89187111936. Its totient is φ = 65511915216.

The previous prime is 77233875749. The next prime is 77233875793. The reversal of 77233875761 is 16757833277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77233875761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77233875697 and 77233875706.

It is not an unprimeable number, because it can be changed into a prime (77233875461) 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, 654860 + ... + 763746.

It is an arithmetic number, because the mean of its divisors is an integer number (5574194496).

Almost surely, 2^77233875761 is an apocalyptic number.

It is an amenable number.

77233875761 is a deficient number, since it is larger than the sum of its proper divisors (11953236175).

77233875761 is a wasteful number, since it uses less digits than its factorization.

77233875761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109948.

The product of its digits is 10372320, while the sum is 56.

The spelling of 77233875761 in words is "seventy-seven billion, two hundred thirty-three million, eight hundred seventy-five thousand, seven hundred sixty-one".