47551647744 has 78 divisors (see below), whose sum is σ = 137354764326. Its totient is φ = 15850536960.

The previous prime is 47551647743. The next prime is 47551647763. The reversal of 47551647744 is 44774615574.

47551647744 is a `hidden beast` number, since 4 + 7 + 551 + 6 + 47 + 7 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27582566400 + 19969081344 = 166080^2 + 141312^2 .

It is a super-2 number, since 2×47551647744² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47551647743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 608097 + ... + 681824.

It is an arithmetic number, because the mean of its divisors is an integer number (1760958517).

Almost surely, 2^47551647744 is an apocalyptic number.

It is an amenable number.

47551647744 is an abundant number, since it is smaller than the sum of its proper divisors (89803116582).

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

47551647744 is a wasteful number, since it uses less digits than its factorization.

47551647744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289951 (or 1289926 counting only the distinct ones).

The product of its digits is 13171200, while the sum is 54.

The spelling of 47551647744 in words is "forty-seven billion, five hundred fifty-one million, six hundred forty-seven thousand, seven hundred forty-four".