451951372322 has 6 divisors (see below), whose sum is σ = 677928484593. Its totient is φ = 225975210792.

The previous prime is 451951372319. The next prime is 451951372339. The reversal of 451951372322 is 223273159154.

It can be written as a sum of positive squares in 2 ways, for example, as 284343831121 + 167607541201 = 533239^2 + 409399^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=475369.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 713054 + ... + 1188422.

Almost surely, 2^451951372322 is an apocalyptic number.

451951372322 is a deficient number, since it is larger than the sum of its proper divisors (225977112271).

451951372322 is an frugal number, since it uses more digits than its factorization.

451951372322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950740 (or 475371 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The spelling of 451951372322 in words is "four hundred fifty-one billion, nine hundred fifty-one million, three hundred seventy-two thousand, three hundred twenty-two".