426795663616 has 243 divisors, whose sum is σ = 1049335622559. Its totient is φ = 172721009664.

The previous prime is 426795663583. The next prime is 426795663617. The reversal of 426795663616 is 616366597624.

It is a happy number.

The square root of 426795663616 is 653296.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (426795663617) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1390213735 + ... + 1390214041.

Almost surely, 2^426795663616 is an apocalyptic number.

426795663616 is the 653296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426795663616

426795663616 is an abundant number, since it is smaller than the sum of its proper divisors (622539958943).

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

426795663616 is an frugal number, since it uses more digits than its factorization.

426795663616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 335 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 61.

The spelling of 426795663616 in words is "four hundred twenty-six billion, seven hundred ninety-five million, six hundred sixty-three thousand, six hundred sixteen".