426215446940196 has 81 divisors (see below), whose sum is σ = 1078543671948561. Its totient is φ = 141918258240864.

The previous prime is 426215446940111. The next prime is 426215446940209. The reversal of 426215446940196 is 691049644512624.

The square root of 426215446940196 is 20644986.

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

426215446940196 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 15 + 446 + 94 + 0 + 1 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10604596860900 + 415610850079296 = 3256470^2 + 20386536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 213427864270 + ... + 213427866266.

Almost surely, 2^{426215446940196} is an apocalyptic number.

426215446940196 is the 20644986-th square number.

It is an amenable number.

426215446940196 is an abundant number, since it is smaller than the sum of its proper divisors (652328225008365).

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

426215446940196 is an frugal number, since it uses more digits than its factorization.

426215446940196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 63.

The spelling of 426215446940196 in words is "four hundred twenty-six trillion, two hundred fifteen billion, four hundred forty-six million, nine hundred forty thousand, one hundred ninety-six".