426866444402 has 32 divisors (see below), whose sum is σ = 661280146560. Its totient is φ = 206533635840.

The previous prime is 426866444383. The next prime is 426866444479. The reversal of 426866444402 is 204444668624.

It is a super-3 number, since 3×426866444402³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25462499 + ... + 25479257.

It is an arithmetic number, because the mean of its divisors is an integer number (20665004580).

Almost surely, 2^426866444402 is an apocalyptic number.

426866444402 is a deficient number, since it is larger than the sum of its proper divisors (234413702158).

426866444402 is a wasteful number, since it uses less digits than its factorization.

426866444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19538.

The product of its (nonzero) digits is 7077888, while the sum is 50.

The spelling of 426866444402 in words is "four hundred twenty-six billion, eight hundred sixty-six million, four hundred forty-four thousand, four hundred two".