426551330520 has 96 divisors (see below), whose sum is σ = 1584333522720. Its totient is φ = 97497446400.

The previous prime is 426551330519. The next prime is 426551330539. The reversal of 426551330520 is 25033155624.

426551330520 is a `hidden beast` number, since 4 + 2 + 65 + 513 + 30 + 52 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 84630681 + ... + 84635720.

It is an arithmetic number, because the mean of its divisors is an integer number (16503474195).

Almost surely, 2^426551330520 is an apocalyptic number.

426551330520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426551330520 is an abundant number, since it is smaller than the sum of its proper divisors (1157782192200).

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

426551330520 is a wasteful number, since it uses less digits than its factorization.

426551330520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169266425 (or 169266418 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 426551330520 in words is "four hundred twenty-six billion, five hundred fifty-one million, three hundred thirty thousand, five hundred twenty".