47907681822 has 768 divisors, whose sum is σ = 156392570880. Its totient is φ = 10581580800.

The previous prime is 47907681817. The next prime is 47907681863. The reversal of 47907681822 is 22818670974.

It is a happy number.

47907681822 is a `hidden beast` number, since 479 + 0 + 76 + 81 + 8 + 22 = 666.

47907681822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 656269578 + ... + 656269650.

It is an arithmetic number, because the mean of its divisors is an integer number (203636160).

Almost surely, 2^47907681822 is an apocalyptic number.

47907681822 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 47907681822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78196285440).

47907681822 is an abundant number, since it is smaller than the sum of its proper divisors (108484889058).

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

47907681822 is a wasteful number, since it uses less digits than its factorization.

47907681822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 47907681822 in words is "forty-seven billion, nine hundred seven million, six hundred eighty-one thousand, eight hundred twenty-two".