421262638454 has 16 divisors (see below), whose sum is σ = 722711234976. Its totient is φ = 180404452800.

The previous prime is 421262638453. The next prime is 421262638547. The reversal of 421262638454 is 454836262124.

It is a junction number, because it is equal to n+sod(n) for n = 421262638399 and 421262638408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421262638453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11370677 + ... + 11407664.

It is an arithmetic number, because the mean of its divisors is an integer number (45169452186).

Almost surely, 2^421262638454 is an apocalyptic number.

421262638454 is a deficient number, since it is larger than the sum of its proper divisors (301448596522).

421262638454 is a wasteful number, since it uses less digits than its factorization.

421262638454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22779671.

The product of its digits is 2211840, while the sum is 47.

The spelling of 421262638454 in words is "four hundred twenty-one billion, two hundred sixty-two million, six hundred thirty-eight thousand, four hundred fifty-four".