3949911153845 has 8 divisors (see below), whose sum is σ = 4740281878176. Its totient is φ = 3159669927376.

The previous prime is 3949911153821. The next prime is 3949911153869. The reversal of 3949911153845 is 5483511199493.

It is an interprime number because it is at equal distance from previous prime (3949911153821) and next prime (3949911153869).

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 3949911153845 - 2²² = 3949906959541 is a prime.

It is a Duffinian number.

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, 32307347 + ... + 32429376.

It is an arithmetic number, because the mean of its divisors is an integer number (592535234772).

Almost surely, 2^{3949911153845} is an apocalyptic number.

It is an amenable number.

3949911153845 is a deficient number, since it is larger than the sum of its proper divisors (790370724331).

3949911153845 is a wasteful number, since it uses less digits than its factorization.

3949911153845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64748931.

The product of its digits is 20995200, while the sum is 62.

The spelling of 3949911153845 in words is "three trillion, nine hundred forty-nine billion, nine hundred eleven million, one hundred fifty-three thousand, eight hundred forty-five".