451156253226 has 24 divisors (see below), whose sum is σ = 1049628834720. Its totient is φ = 128901786552.

The previous prime is 451156253201. The next prime is 451156253237. The reversal of 451156253226 is 622352651154.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 767272246 + ... + 767272833.

It is an arithmetic number, because the mean of its divisors is an integer number (43734534780).

Almost surely, 2^451156253226 is an apocalyptic number.

451156253226 is an abundant number, since it is smaller than the sum of its proper divisors (598472581494).

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

451156253226 is a wasteful number, since it uses less digits than its factorization.

451156253226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534545098 (or 1534545091 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 451156253226 in words is "four hundred fifty-one billion, one hundred fifty-six million, two hundred fifty-three thousand, two hundred twenty-six".