5457880644 has 24 divisors (see below), whose sum is σ = 13405321440. Its totient is φ = 1723541184.

The previous prime is 5457880643. The next prime is 5457880661. The reversal of 5457880644 is 4460887545.

It is a super-2 number, since 2×5457880644² = 59576922248299709472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5457880643) 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, 11968809 + ... + 11969264.

It is an arithmetic number, because the mean of its divisors is an integer number (558555060).

Almost surely, 2^5457880644 is an apocalyptic number.

It is an amenable number.

5457880644 is an abundant number, since it is smaller than the sum of its proper divisors (7947440796).

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

5457880644 is a wasteful number, since it uses less digits than its factorization.

5457880644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23938099 (or 23938097 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 51.

The square root of 5457880644 is about 73877.4704764585. The cubic root of 5457880644 is about 1760.6566768736.

The spelling of 5457880644 in words is "five billion, four hundred fifty-seven million, eight hundred eighty thousand, six hundred forty-four".