77613231677 has 8 divisors (see below), whose sum is σ = 78933180480. Its totient is φ = 76293432000.

The previous prime is 77613231671. The next prime is 77613231697.

77613231677 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77613231677 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 (77613231671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673552 + ... + 1719302.

It is an arithmetic number, because the mean of its divisors is an integer number (9866647560).

Almost surely, 2^77613231677 is an apocalyptic number.

It is an amenable number.

77613231677 is a deficient number, since it is larger than the sum of its proper divisors (1319948803).

77613231677 is a wasteful number, since it uses less digits than its factorization.

77613231677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74563.

The product of its digits is 1555848, while the sum is 50.

The spelling of 77613231677 in words is "seventy-seven billion, six hundred thirteen million, two hundred thirty-one thousand, six hundred seventy-seven".