47551851936 has 72 divisors (see below), whose sum is σ = 137078044740. Its totient is φ = 15633478656.

The previous prime is 47551851889. The next prime is 47551851967. The reversal of 47551851936 is 63915815574.

47551851936 is a `hidden beast` number, since 4 + 7 + 551 + 8 + 51 + 9 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44418091536 + 3133760400 = 210756^2 + 55980^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×47551851936² (a number of 22 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1109871 + ... + 1151918.

Almost surely, 2^47551851936 is an apocalyptic number.

It is an amenable number.

47551851936 is an abundant number, since it is smaller than the sum of its proper divisors (89526192804).

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

47551851936 is a wasteful number, since it uses less digits than its factorization.

47551851936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261878 (or 2261867 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 54.

The spelling of 47551851936 in words is "forty-seven billion, five hundred fifty-one million, eight hundred fifty-one thousand, nine hundred thirty-six".