3117739785 has 32 divisors (see below), whose sum is σ = 5047805952. Its totient is φ = 1643067840.

The previous prime is 3117739771. The next prime is 3117739789. The reversal of 3117739785 is 5879377113.

It is not a de Polignac number, because 3117739785 - 2¹⁰ = 3117738761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3117739789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689502 + ... + 694008.

It is an arithmetic number, because the mean of its divisors is an integer number (157743936).

Almost surely, 2^3117739785 is an apocalyptic number.

It is an amenable number.

3117739785 is a deficient number, since it is larger than the sum of its proper divisors (1930066167).

3117739785 is a wasteful number, since it uses less digits than its factorization.

3117739785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053.

The product of its digits is 1111320, while the sum is 51.

The square root of 3117739785 is about 55836.7243398106. The cubic root of 3117739785 is about 1460.8757779641.

The spelling of 3117739785 in words is "three billion, one hundred seventeen million, seven hundred thirty-nine thousand, seven hundred eighty-five".