451722572380 has 24 divisors (see below), whose sum is σ = 949172545440. Its totient is φ = 180583287360.

The previous prime is 451722572299. The next prime is 451722572393. The reversal of 451722572380 is 83275227154.

It is a self number, because there is not a number n which added to its sum of digits gives 451722572380.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6573816 + ... + 6642175.

It is an arithmetic number, because the mean of its divisors is an integer number (39548856060).

Almost surely, 2^451722572380 is an apocalyptic number.

It is an amenable number.

451722572380 is an abundant number, since it is smaller than the sum of its proper divisors (497449973060).

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

451722572380 is a wasteful number, since it uses less digits than its factorization.

451722572380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217709 (or 13217707 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 451722572380 in words is "four hundred fifty-one billion, seven hundred twenty-two million, five hundred seventy-two thousand, three hundred eighty".