451531253222142 has 32 divisors (see below), whose sum is σ = 965309656953600. Its totient is φ = 140455108812480.

The previous prime is 451531253222129. The next prime is 451531253222243. The reversal of 451531253222142 is 241222352135154.

It is a junction number, because it is equal to n+sod(n) for n = 451531253222094 and 451531253222103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39902013892 + ... + 39902025207.

It is an arithmetic number, because the mean of its divisors is an integer number (30165926779800).

Almost surely, 2^{451531253222142} is an apocalyptic number.

451531253222142 is an abundant number, since it is smaller than the sum of its proper divisors (513778403731458).

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

451531253222142 is a wasteful number, since it uses less digits than its factorization.

451531253222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79804039168.

The product of its digits is 576000, while the sum is 42.

The spelling of 451531253222142 in words is "four hundred fifty-one trillion, five hundred thirty-one billion, two hundred fifty-three million, two hundred twenty-two thousand, one hundred forty-two".