3117556477 has 8 divisors (see below), whose sum is σ = 3564276992. Its totient is φ = 2671174800.

The previous prime is 3117556451. The next prime is 3117556523. The reversal of 3117556477 is 7746557113.

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

It is a de Polignac number, because none of the positive numbers 2^k-3117556477 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 (3117556777) 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, 64674 + ... + 102067.

It is an arithmetic number, because the mean of its divisors is an integer number (445534624).

Almost surely, 2^3117556477 is an apocalyptic number.

It is an amenable number.

3117556477 is a deficient number, since it is larger than the sum of its proper divisors (446720515).

3117556477 is a wasteful number, since it uses less digits than its factorization.

3117556477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169419.

The product of its digits is 617400, while the sum is 46.

The square root of 3117556477 is about 55835.0828511967. The cubic root of 3117556477 is about 1460.8471465961.

The spelling of 3117556477 in words is "three billion, one hundred seventeen million, five hundred fifty-six thousand, four hundred seventy-seven".