3854166991 has 8 divisors (see below), whose sum is σ = 3974390784. Its totient is φ = 3735535800.

The previous prime is 3854166959. The next prime is 3854167021. The reversal of 3854166991 is 1996614583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3854166991 - 2⁵ = 3854166959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3854166931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393235 + ... + 402916.

It is an arithmetic number, because the mean of its divisors is an integer number (496798848).

Almost surely, 2^3854166991 is an apocalyptic number.

3854166991 is a deficient number, since it is larger than the sum of its proper divisors (120223793).

3854166991 is a wasteful number, since it uses less digits than its factorization.

3854166991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796301.

The product of its digits is 1399680, while the sum is 52.

The square root of 3854166991 is about 62081.9377194366. The cubic root of 3854166991 is about 1567.8704532912.

The spelling of 3854166991 in words is "three billion, eight hundred fifty-four million, one hundred sixty-six thousand, nine hundred ninety-one".