3961355768 has 8 divisors (see below), whose sum is σ = 7427542080. Its totient is φ = 1980677880.

The previous prime is 3961355737. The next prime is 3961355777. The reversal of 3961355768 is 8675531693.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247584728 + ... + 247584743.

It is an arithmetic number, because the mean of its divisors is an integer number (928442760).

Almost surely, 2^3961355768 is an apocalyptic number.

It is an amenable number.

3961355768 is a deficient number, since it is larger than the sum of its proper divisors (3466186312).

3961355768 is a wasteful number, since it uses less digits than its factorization.

3961355768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495169477 (or 495169473 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 53.

The square root of 3961355768 is about 62939.3022522493. The cubic root of 3961355768 is about 1582.2725094118.

The spelling of 3961355768 in words is "three billion, nine hundred sixty-one million, three hundred fifty-five thousand, seven hundred sixty-eight".