3956117761 has 4 divisors (see below), whose sum is σ = 3957531952. Its totient is φ = 3954703572.

The previous prime is 3956117749. The next prime is 3956117771. The reversal of 3956117761 is 1677116593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3956117761 - 2¹³ = 3956109569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3956117771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702891 + ... + 708496.

It is an arithmetic number, because the mean of its divisors is an integer number (989382988).

Almost surely, 2^3956117761 is an apocalyptic number.

It is an amenable number.

3956117761 is a deficient number, since it is larger than the sum of its proper divisors (1414191).

3956117761 is a wasteful number, since it uses less digits than its factorization.

3956117761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414190.

The product of its digits is 238140, while the sum is 46.

The square root of 3956117761 is about 62897.6769125856. The cubic root of 3956117761 is about 1581.5748013004.

The spelling of 3956117761 in words is "three billion, nine hundred fifty-six million, one hundred seventeen thousand, seven hundred sixty-one".