426613233665502 has 192 divisors, whose sum is σ = 1048686912000000. Its totient is φ = 124254291009024.

The previous prime is 426613233665497. The next prime is 426613233665519. The reversal of 426613233665502 is 205566332316624.

426613233665502 is a `hidden beast` number, since 4 + 2 + 6 + 6 + 1 + 3 + 23 + 3 + 66 + 550 + 2 = 666.

It is a super-3 number, since 3×426613233665502³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31987189378 + ... + 31987202714.

It is an arithmetic number, because the mean of its divisors is an integer number (5461911000000).

Almost surely, 2^{426613233665502} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426613233665502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524343456000000).

426613233665502 is an abundant number, since it is smaller than the sum of its proper divisors (622073678334498).

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

426613233665502 is a wasteful number, since it uses less digits than its factorization.

426613233665502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18775 (or 18772 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

The spelling of 426613233665502 in words is "four hundred twenty-six trillion, six hundred thirteen billion, two hundred thirty-three million, six hundred sixty-five thousand, five hundred two".