5145445651 has 4 divisors (see below), whose sum is σ = 5416258600. Its totient is φ = 4874632704.

The previous prime is 5145445633. The next prime is 5145445681. The reversal of 5145445651 is 1565445415.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5145445651 - 2⁵ = 5145445619 is a prime.

It is a super-2 number, since 2×5145445651² = 52951221894789627602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5145445601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135406446 + ... + 135406483.

It is an arithmetic number, because the mean of its divisors is an integer number (1354064650).

Almost surely, 2^5145445651 is an apocalyptic number.

5145445651 is a deficient number, since it is larger than the sum of its proper divisors (270812949).

5145445651 is a wasteful number, since it uses less digits than its factorization.

5145445651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270812948.

The product of its digits is 240000, while the sum is 40.

The square root of 5145445651 is about 71731.7618004744. The cubic root of 5145445651 is about 1726.3982950311.

The spelling of 5145445651 in words is "five billion, one hundred forty-five million, four hundred forty-five thousand, six hundred fifty-one".