5154451621 has 8 divisors (see below), whose sum is σ = 5630436288. Its totient is φ = 4679700000.

The previous prime is 5154451597. The next prime is 5154451637. The reversal of 5154451621 is 1261544515.

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 5154451621 - 2²⁵ = 5120897189 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 (5154451321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299505 + ... + 316246.

It is an arithmetic number, because the mean of its divisors is an integer number (703804536).

Almost surely, 2^5154451621 is an apocalyptic number.

It is an amenable number.

5154451621 is a deficient number, since it is larger than the sum of its proper divisors (475984667).

5154451621 is a wasteful number, since it uses less digits than its factorization.

5154451621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616523.

The product of its digits is 24000, while the sum is 34.

The square root of 5154451621 is about 71794.5096856299. The cubic root of 5154451621 is about 1727.4049346929.

The spelling of 5154451621 in words is "five billion, one hundred fifty-four million, four hundred fifty-one thousand, six hundred twenty-one".