5457721790 has 16 divisors (see below), whose sum is σ = 9825148368. Its totient is φ = 2182811136.

The previous prime is 5457721757. The next prime is 5457721811. The reversal of 5457721790 is 971277545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60254 + ... + 120606.

It is an arithmetic number, because the mean of its divisors is an integer number (614071773).

Almost surely, 2^5457721790 is an apocalyptic number.

5457721790 is a deficient number, since it is larger than the sum of its proper divisors (4367426578).

5457721790 is a wasteful number, since it uses less digits than its factorization.

5457721790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69403.

The product of its (nonzero) digits is 617400, while the sum is 47.

The square root of 5457721790 is about 73876.3953506125. The cubic root of 5457721790 is about 1760.6395951474.

It can be divided in two parts, 54577 and 21790, that added together give a palindrome (76367).

The spelling of 5457721790 in words is "five billion, four hundred fifty-seven million, seven hundred twenty-one thousand, seven hundred ninety".