5144645454 has 32 divisors (see below), whose sum is σ = 11195026080. Its totient is φ = 1566646272.

The previous prime is 5144645453. The next prime is 5144645459. The reversal of 5144645454 is 4545464415.

It is a happy number.

It is a super-2 number, since 2×5144645454² = 52934753694725732232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144645453) 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, 332419 + ... + 347550.

It is an arithmetic number, because the mean of its divisors is an integer number (349844565).

Almost surely, 2^5144645454 is an apocalyptic number.

5144645454 is an abundant number, since it is smaller than the sum of its proper divisors (6050380626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5144645454 is a wasteful number, since it uses less digits than its factorization.

5144645454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680084.

The product of its digits is 768000, while the sum is 42.

The square root of 5144645454 is about 71726.1838800866. The cubic root of 5144645454 is about 1726.3087964435.

The spelling of 5144645454 in words is "five billion, one hundred forty-four million, six hundred forty-five thousand, four hundred fifty-four".