422451431212550 has 48 divisors (see below), whose sum is σ = 786393191900160. Its totient is φ = 168844382238240.

The previous prime is 422451431212549. The next prime is 422451431212583. The reversal of 422451431212550 is 55212134154224.

It is a junction number, because it is equal to n+sod(n) for n = 422451431212498 and 422451431212507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321068309 + ... + 322381391.

It is an arithmetic number, because the mean of its divisors is an integer number (16383191497920).

Almost surely, 2^{422451431212550} is an apocalyptic number.

422451431212550 is a deficient number, since it is larger than the sum of its proper divisors (363941760687610).

422451431212550 is a wasteful number, since it uses less digits than its factorization.

422451431212550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318277 (or 1318272 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 422451431212550 its reverse (55212134154224), we get a palindrome (477663565366774).

The spelling of 422451431212550 in words is "four hundred twenty-two trillion, four hundred fifty-one billion, four hundred thirty-one million, two hundred twelve thousand, five hundred fifty".