426660717252 has 96 divisors (see below), whose sum is σ = 1242923028480. Its totient is φ = 110666661120.

The previous prime is 426660717239. The next prime is 426660717253. The reversal of 426660717252 is 252717066624.

It is not an unprimeable number, because it can be changed into a prime (426660717253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343248 + ... + 985464.

It is an arithmetic number, because the mean of its divisors is an integer number (12947114880).

Almost surely, 2^426660717252 is an apocalyptic number.

426660717252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426660717252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621461514240).

426660717252 is an abundant number, since it is smaller than the sum of its proper divisors (816262311228).

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

426660717252 is a wasteful number, since it uses less digits than its factorization.

426660717252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642961 (or 642959 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 426660717252 in words is "four hundred twenty-six billion, six hundred sixty million, seven hundred seventeen thousand, two hundred fifty-two".