476681157240 has 256 divisors, whose sum is σ = 1551049344000. Its totient is φ = 116786810880.

The previous prime is 476681157193. The next prime is 476681157263. The reversal of 476681157240 is 42751186674.

It is a Cunningham number, because it is equal to 690421²-1.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26226876 + ... + 26245044.

It is an arithmetic number, because the mean of its divisors is an integer number (6058786500).

Almost surely, 2^476681157240 is an apocalyptic number.

476681157240 is a gapful number since it is divisible by the number (40) 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 476681157240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775524672000).

476681157240 is an abundant number, since it is smaller than the sum of its proper divisors (1074368186760).

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

476681157240 is a wasteful number, since it uses less digits than its factorization.

476681157240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550 (or 18546 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 476681157240 in words is "four hundred seventy-six billion, six hundred eighty-one million, one hundred fifty-seven thousand, two hundred forty".