3942656135 has 12 divisors (see below), whose sum is σ = 5200396824. Its totient is φ = 2867385840.

The previous prime is 3942656119. The next prime is 3942656149. The reversal of 3942656135 is 5316562493.

It is not a de Polignac number, because 3942656135 - 2⁴ = 3942656119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3257789 + ... + 3258998.

It is an arithmetic number, because the mean of its divisors is an integer number (433366402).

Almost surely, 2^3942656135 is an apocalyptic number.

3942656135 is a deficient number, since it is larger than the sum of its proper divisors (1257740689).

3942656135 is a wasteful number, since it uses less digits than its factorization.

3942656135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6516814 (or 6516803 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The square root of 3942656135 is about 62790.5736157905. The cubic root of 3942656135 is about 1579.7788686681.

The spelling of 3942656135 in words is "three billion, nine hundred forty-two million, six hundred fifty-six thousand, one hundred thirty-five".