451031514420 has 48 divisors (see below), whose sum is σ = 1269865554048. Its totient is φ = 119610564480.

The previous prime is 451031514413. The next prime is 451031514473. The reversal of 451031514420 is 24415130154.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 20754864 + ... + 20776583.

It is an arithmetic number, because the mean of its divisors is an integer number (26455532376).

Almost surely, 2^451031514420 is an apocalyptic number.

It is an amenable number.

451031514420 is an abundant number, since it is smaller than the sum of its proper divisors (818834039628).

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

451031514420 is a wasteful number, since it uses less digits than its factorization.

451031514420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41531640 (or 41531638 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 451031514420 its reverse (24415130154), we get a palindrome (475446644574).

The spelling of 451031514420 in words is "four hundred fifty-one billion, thirty-one million, five hundred fourteen thousand, four hundred twenty".