47920787784 has 288 divisors, whose sum is σ = 140922905760. Its totient is φ = 15254023680.

The previous prime is 47920787779. The next prime is 47920787809. The reversal of 47920787784 is 48778702974.

47920787784 is a `hidden beast` number, since 479 + 2 + 0 + 7 + 87 + 7 + 84 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 211104679 + ... + 211104905.

It is an arithmetic number, because the mean of its divisors is an integer number (489315645).

Almost surely, 2^47920787784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47920787784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70461452880).

47920787784 is an abundant number, since it is smaller than the sum of its proper divisors (93002117976).

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

47920787784 is a wasteful number, since it uses less digits than its factorization.

47920787784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 63.

The spelling of 47920787784 in words is "forty-seven billion, nine hundred twenty million, seven hundred eighty-seven thousand, seven hundred eighty-four".