3664766891 has 16 divisors (see below), whose sum is σ = 3974344704. Its totient is φ = 3365787264.

The previous prime is 3664766867. The next prime is 3664766909. The reversal of 3664766891 is 1986674663.

It is not a de Polignac number, because 3664766891 - 2²⁶ = 3597658027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3664706891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155590 + ... + 1158756.

It is an arithmetic number, because the mean of its divisors is an integer number (248396544).

Almost surely, 2^3664766891 is an apocalyptic number.

3664766891 is a deficient number, since it is larger than the sum of its proper divisors (309577813).

3664766891 is a wasteful number, since it uses less digits than its factorization.

3664766891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810.

The product of its digits is 7838208, while the sum is 56.

The square root of 3664766891 is about 60537.3181682175. The cubic root of 3664766891 is about 1541.7553059698.

The spelling of 3664766891 in words is "three billion, six hundred sixty-four million, seven hundred sixty-six thousand, eight hundred ninety-one".