3961854564 has 12 divisors (see below), whose sum is σ = 9244327344. Its totient is φ = 1320618184.

The previous prime is 3961854553. The next prime is 3961854623. The reversal of 3961854564 is 4654581693.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165077262 + ... + 165077285.

It is an arithmetic number, because the mean of its divisors is an integer number (770360612).

Almost surely, 2^3961854564 is an apocalyptic number.

It is an amenable number.

3961854564 is an abundant number, since it is smaller than the sum of its proper divisors (5282472780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3961854564 is a wasteful number, since it uses less digits than its factorization.

3961854564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330154554 (or 330154552 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The square root of 3961854564 is about 62943.2646436456. The cubic root of 3961854564 is about 1582.3389174904.

The spelling of 3961854564 in words is "three billion, nine hundred sixty-one million, eight hundred fifty-four thousand, five hundred sixty-four".