3749761656 has 48 divisors (see below), whose sum is σ = 10166045760. Its totient is φ = 1248635520.

The previous prime is 3749761649. The next prime is 3749761667. The reversal of 3749761656 is 6561679473.

It is a happy number.

3749761656 is a `hidden beast` number, since 37 + 497 + 61 + 65 + 6 = 666.

3749761656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 45076 + ... + 97628.

It is an arithmetic number, because the mean of its divisors is an integer number (211792620).

Almost surely, 2^3749761656 is an apocalyptic number.

3749761656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3749761656 is an abundant number, since it is smaller than the sum of its proper divisors (6416284104).

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

3749761656 is a wasteful number, since it uses less digits than its factorization.

3749761656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53556 (or 53549 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 3749761656 is about 61235.2974680453. The cubic root of 3749761656 is about 1553.5833371585.

The spelling of 3749761656 in words is "three billion, seven hundred forty-nine million, seven hundred sixty-one thousand, six hundred fifty-six".