77366231801 has 4 divisors (see below), whose sum is σ = 77878591104. Its totient is φ = 76853872500.

The previous prime is 77366231791. The next prime is 77366231849. The reversal of 77366231801 is 10813266377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77366231801 - 2²² = 77362037497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77366231881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256179425 + ... + 256179726.

It is an arithmetic number, because the mean of its divisors is an integer number (19469647776).

Almost surely, 2^77366231801 is an apocalyptic number.

It is an amenable number.

77366231801 is a deficient number, since it is larger than the sum of its proper divisors (512359303).

77366231801 is a wasteful number, since it uses less digits than its factorization.

77366231801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512359302.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 77366231801 in words is "seventy-seven billion, three hundred sixty-six million, two hundred thirty-one thousand, eight hundred one".