451782491380 has 24 divisors (see below), whose sum is σ = 1034992617120. Its totient is φ = 164284542240.

The previous prime is 451782491291. The next prime is 451782491393. The reversal of 451782491380 is 83194287154.

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, 1026778170 + ... + 1026778609.

It is an arithmetic number, because the mean of its divisors is an integer number (43124692380).

Almost surely, 2^451782491380 is an apocalyptic number.

It is an amenable number.

451782491380 is an abundant number, since it is smaller than the sum of its proper divisors (583210125740).

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

451782491380 is a wasteful number, since it uses less digits than its factorization.

451782491380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053556799 (or 2053556797 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 451782491380 in words is "four hundred fifty-one billion, seven hundred eighty-two million, four hundred ninety-one thousand, three hundred eighty".