3906954225421 has 16 divisors (see below), whose sum is σ = 4429368800640. Its totient is φ = 3416273841600.

The previous prime is 3906954225401. The next prime is 3906954225439. The reversal of 3906954225421 is 1245224596093.

It is a happy number.

It is not a de Polignac number, because 3906954225421 - 2⁵ = 3906954225389 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 (3906954225401) 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, 1776576 + ... + 3312118.

It is an arithmetic number, because the mean of its divisors is an integer number (276835550040).

Almost surely, 2^{3906954225421} is an apocalyptic number.

It is an amenable number.

3906954225421 is a deficient number, since it is larger than the sum of its proper divisors (522414575219).

3906954225421 is a wasteful number, since it uses less digits than its factorization.

3906954225421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545876.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 3906954225421 in words is "three trillion, nine hundred six billion, nine hundred fifty-four million, two hundred twenty-five thousand, four hundred twenty-one".