47920071888 has 120 divisors (see below), whose sum is σ = 149406140520. Its totient is φ = 14236185600.

The previous prime is 47920071887. The next prime is 47920071907. The reversal of 47920071888 is 88817002974.

It is a happy number.

47920071888 is a `hidden beast` number, since 479 + 20 + 0 + 71 + 8 + 88 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3562657344 + 44357414544 = 59688^2 + 210612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47920071887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387063 + ... + 495638.

It is an arithmetic number, because the mean of its divisors is an integer number (1245051171).

Almost surely, 2^47920071888 is an apocalyptic number.

47920071888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

47920071888 is an abundant number, since it is smaller than the sum of its proper divisors (101486068632).

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

47920071888 is a wasteful number, since it uses less digits than its factorization.

47920071888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882757 (or 882748 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 47920071888 in words is "forty-seven billion, nine hundred twenty million, seventy-one thousand, eight hundred eighty-eight".