426475497621 has 8 divisors (see below), whose sum is σ = 568641271744. Its totient is φ = 284313360960.

The previous prime is 426475497619. The next prime is 426475497667. The reversal of 426475497621 is 126794574624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 426475497621 - 2¹ = 426475497619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426475497671) 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, 622900 + ... + 1113981.

It is an arithmetic number, because the mean of its divisors is an integer number (71080158968).

Almost surely, 2^426475497621 is an apocalyptic number.

It is an amenable number.

426475497621 is a deficient number, since it is larger than the sum of its proper divisors (142165774123).

426475497621 is a wasteful number, since it uses less digits than its factorization.

426475497621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818731.

The product of its digits is 20321280, while the sum is 57.

The spelling of 426475497621 in words is "four hundred twenty-six billion, four hundred seventy-five million, four hundred ninety-seven thousand, six hundred twenty-one".