3684640464893 has 2 divisors, whose sum is σ = 3684640464894. Its totient is φ = 3684640464892.

The previous prime is 3684640464887. The next prime is 3684640465031. The reversal of 3684640464893 is 3984640464863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2052792621049 + 1631847843844 = 1432757^2 + 1277438^2 .

It is a cyclic number.

It is not a de Polignac number, because 3684640464893 - 2²⁰ = 3684639416317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3684640461893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842320232446 + 1842320232447.

It is an arithmetic number, because the mean of its divisors is an integer number (1842320232447).

Almost surely, 2^{3684640464893} is an apocalyptic number.

It is an amenable number.

3684640464893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3684640464893 is an equidigital number, since it uses as much as digits as its factorization.

3684640464893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 286654464, while the sum is 65.

The spelling of 3684640464893 in words is "three trillion, six hundred eighty-four billion, six hundred forty million, four hundred sixty-four thousand, eight hundred ninety-three".