426512604663021 has 16 divisors (see below), whose sum is σ = 570065187702528. Its totient is φ = 283651023163200.

The previous prime is 426512604663007. The next prime is 426512604663043. The reversal of 426512604663021 is 120366406215624.

It is not a de Polignac number, because 426512604663021 - 2¹⁵ = 426512604630253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426512604663221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6171510 + ... + 29851511.

It is an arithmetic number, because the mean of its divisors is an integer number (35629074231408).

Almost surely, 2^{426512604663021} is an apocalyptic number.

It is an amenable number.

426512604663021 is a deficient number, since it is larger than the sum of its proper divisors (143552583039507).

426512604663021 is a wasteful number, since it uses less digits than its factorization.

426512604663021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36032612.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 426512604663021 in words is "four hundred twenty-six trillion, five hundred twelve billion, six hundred four million, six hundred sixty-three thousand, twenty-one".