3117578461 has 2 divisors, whose sum is σ = 3117578462. Its totient is φ = 3117578460.

The previous prime is 3117578437. The next prime is 3117578483. The reversal of 3117578461 is 1648757113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2757300100 + 360278361 = 52510^2 + 18981^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117578461 - 2⁹ = 3117577949 is a prime.

It is a super-2 number, since 2×3117578461² = 19438590920982257042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3117578411) 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 as a sum of consecutive naturals, namely, 1558789230 + 1558789231.

It is an arithmetic number, because the mean of its divisors is an integer number (1558789231).

Almost surely, 2^3117578461 is an apocalyptic number.

It is an amenable number.

3117578461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117578461 is an equidigital number, since it uses as much as digits as its factorization.

3117578461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The square root of 3117578461 is about 55835.2797163227. The cubic root of 3117578461 is about 1460.8505803952.

The spelling of 3117578461 in words is "three billion, one hundred seventeen million, five hundred seventy-eight thousand, four hundred sixty-one".