77173423477 has 8 divisors (see below), whose sum is σ = 77375450880. Its totient is φ = 76971503280.

The previous prime is 77173423441. The next prime is 77173423487. The reversal of 77173423477 is 77432437177.

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-77173423477 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 (77173423487) 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, 1532424 + ... + 1581982.

It is an arithmetic number, because the mean of its divisors is an integer number (9671931360).

Almost surely, 2^77173423477 is an apocalyptic number.

It is an amenable number.

77173423477 is a deficient number, since it is larger than the sum of its proper divisors (202027403).

77173423477 is a wasteful number, since it uses less digits than its factorization.

77173423477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53603.

The product of its digits is 4840416, while the sum is 52.

The spelling of 77173423477 in words is "seventy-seven billion, one hundred seventy-three million, four hundred twenty-three thousand, four hundred seventy-seven".