77769231623 has 8 divisors (see below), whose sum is σ = 77858374800. Its totient is φ = 77680124928.

The previous prime is 77769231619. The next prime is 77769231637. The reversal of 77769231623 is 32613296777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77769231623 - 2² = 77769231619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77769231653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7494983 + ... + 7505351.

It is an arithmetic number, because the mean of its divisors is an integer number (9732296850).

Almost surely, 2^77769231623 is an apocalyptic number.

77769231623 is a deficient number, since it is larger than the sum of its proper divisors (89143177).

77769231623 is a wasteful number, since it uses less digits than its factorization.

77769231623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18241.

The product of its digits is 4000752, while the sum is 53.

The spelling of 77769231623 in words is "seventy-seven billion, seven hundred sixty-nine million, two hundred thirty-one thousand, six hundred twenty-three".