5406613621 has 16 divisors (see below), whose sum is σ = 5717306880. Its totient is φ = 5105744640.

The previous prime is 5406613607. The next prime is 5406613633. The reversal of 5406613621 is 1263166045.

It is not a de Polignac number, because 5406613621 - 2²⁷ = 5272395893 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 (5406613601) 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, 239785 + ... + 261361.

It is an arithmetic number, because the mean of its divisors is an integer number (357331680).

Almost surely, 2^5406613621 is an apocalyptic number.

It is an amenable number.

5406613621 is a deficient number, since it is larger than the sum of its proper divisors (310693259).

5406613621 is a wasteful number, since it uses less digits than its factorization.

5406613621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21804.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 5406613621 is about 73529.6785046691. The cubic root of 5406613621 is about 1755.1265857292.

Adding to 5406613621 its reverse (1263166045), we get a palindrome (6669779666).

The spelling of 5406613621 in words is "five billion, four hundred six million, six hundred thirteen thousand, six hundred twenty-one".