4621416921 has 24 divisors (see below), whose sum is σ = 7284478656. Its totient is φ = 2799995040.

The previous prime is 4621416907. The next prime is 4621416923. The reversal of 4621416921 is 1296141264.

4621416921 is a `hidden beast` number, since 4 + 621 + 4 + 1 + 6 + 9 + 21 = 666.

It is not a de Polignac number, because 4621416921 - 2⁵ = 4621416889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4621416923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483636 + ... + 493098.

It is an arithmetic number, because the mean of its divisors is an integer number (303519944).

Almost surely, 2^4621416921 is an apocalyptic number.

It is an amenable number.

4621416921 is a deficient number, since it is larger than the sum of its proper divisors (2663061735).

4621416921 is a wasteful number, since it uses less digits than its factorization.

4621416921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14413 (or 14410 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 4621416921 is about 67981.0041187978. The cubic root of 4621416921 is about 1665.6805583004.

The spelling of 4621416921 in words is "four billion, six hundred twenty-one million, four hundred sixteen thousand, nine hundred twenty-one".