451263151220 has 48 divisors (see below), whose sum is σ = 1084024626048. Its totient is φ = 154576928640.

The previous prime is 451263151177. The next prime is 451263151307. The reversal of 451263151220 is 22151362154.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1324487 + ... + 1629966.

It is an arithmetic number, because the mean of its divisors is an integer number (22583846376).

Almost surely, 2^451263151220 is an apocalyptic number.

It is an amenable number.

451263151220 is an abundant number, since it is smaller than the sum of its proper divisors (632761474828).

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

451263151220 is a wasteful number, since it uses less digits than its factorization.

451263151220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955560 (or 2955558 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 451263151220 in words is "four hundred fifty-one billion, two hundred sixty-three million, one hundred fifty-one thousand, two hundred twenty".