5457645321 has 8 divisors (see below), whose sum is σ = 7593245760. Its totient is φ = 3480237552.

The previous prime is 5457645293. The next prime is 5457645353. The reversal of 5457645321 is 1235467545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5457645321 - 2¹⁴ = 5457628937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5457645121) 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, 39548086 + ... + 39548223.

It is an arithmetic number, because the mean of its divisors is an integer number (949155720).

Almost surely, 2^5457645321 is an apocalyptic number.

It is an amenable number.

5457645321 is a deficient number, since it is larger than the sum of its proper divisors (2135600439).

5457645321 is a wasteful number, since it uses less digits than its factorization.

5457645321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79096335.

The product of its digits is 504000, while the sum is 42.

The square root of 5457645321 is about 73875.8778018915. The cubic root of 5457645321 is about 1760.6313722427.

The spelling of 5457645321 in words is "five billion, four hundred fifty-seven million, six hundred forty-five thousand, three hundred twenty-one".