451121431404 has 48 divisors (see below), whose sum is σ = 1223380166400. Its totient is φ = 126707228736.

The previous prime is 451121431393. The next prime is 451121431429. The reversal of 451121431404 is 404134121154.

It is a super-2 number, since 2×451121431404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45507699 + ... + 45517610.

It is an arithmetic number, because the mean of its divisors is an integer number (25487086800).

Almost surely, 2^451121431404 is an apocalyptic number.

It is an amenable number.

451121431404 is an abundant number, since it is smaller than the sum of its proper divisors (772258734996).

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

451121431404 is a wasteful number, since it uses less digits than its factorization.

451121431404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91025382 (or 91025380 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 451121431404 its reverse (404134121154), we get a palindrome (855255552558).

The spelling of 451121431404 in words is "four hundred fifty-one billion, one hundred twenty-one million, four hundred thirty-one thousand, four hundred four".