3766728640 has 56 divisors (see below), whose sum is σ = 8978018112. Its totient is φ = 1505264640.

The previous prime is 3766728571. The next prime is 3766728689. The reversal of 3766728640 is 468276673.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372937 + ... + 382903.

It is an arithmetic number, because the mean of its divisors is an integer number (160321752).

Almost surely, 2^3766728640 is an apocalyptic number.

It is an amenable number.

3766728640 is an abundant number, since it is smaller than the sum of its proper divisors (5211289472).

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

3766728640 is a wasteful number, since it uses less digits than its factorization.

3766728640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11165 (or 11155 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

The square root of 3766728640 is about 61373.6803524117. The cubic root of 3766728640 is about 1555.9230383797.

The spelling of 3766728640 in words is "three billion, seven hundred sixty-six million, seven hundred twenty-eight thousand, six hundred forty".