5421402921 has 32 divisors (see below), whose sum is σ = 7987828608. Its totient is φ = 3243376640.

The previous prime is 5421402827. The next prime is 5421402923. The reversal of 5421402921 is 1292041245.

It is a cyclic number.

It is not a de Polignac number, because 5421402921 - 2⁹ = 5421402409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421402923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955525 + ... + 961181.

It is an arithmetic number, because the mean of its divisors is an integer number (249619644).

Almost surely, 2^5421402921 is an apocalyptic number.

It is an amenable number.

5421402921 is a deficient number, since it is larger than the sum of its proper divisors (2566425687).

5421402921 is a wasteful number, since it uses less digits than its factorization.

5421402921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 5421402921 is about 73630.1767008609. The cubic root of 5421402921 is about 1756.7254584912.

The spelling of 5421402921 in words is "five billion, four hundred twenty-one million, four hundred two thousand, nine hundred twenty-one".