3804557663667 has 16 divisors (see below), whose sum is σ = 5107951147520. Its totient is φ = 2518778592000.

The previous prime is 3804557663657. The next prime is 3804557663707. The reversal of 3804557663667 is 7663667554083.

It is not a de Polignac number, because 3804557663667 - 2²⁰ = 3804556615091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3804557663598 and 3804557663607.

It is not an unprimeable number, because it can be changed into a prime (3804557663657) 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, 110442 + ... + 2760672.

It is an arithmetic number, because the mean of its divisors is an integer number (319246946720).

Almost surely, 2^{3804557663667} is an apocalyptic number.

3804557663667 is a deficient number, since it is larger than the sum of its proper divisors (1303393483853).

3804557663667 is a wasteful number, since it uses less digits than its factorization.

3804557663667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653554.

The product of its (nonzero) digits is 457228800, while the sum is 66.

The spelling of 3804557663667 in words is "three trillion, eight hundred four billion, five hundred fifty-seven million, six hundred sixty-three thousand, six hundred sixty-seven".