47117443540 has 48 divisors (see below), whose sum is σ = 104099489424. Its totient is φ = 17890329600.

The previous prime is 47117443507. The next prime is 47117443547. The reversal of 47117443540 is 4534471174.

47117443540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 9146244496 + 37971199044 = 95636^2 + 194862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47117443493 and 47117443502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47117443547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746151 + ... + 806830.

It is an arithmetic number, because the mean of its divisors is an integer number (2168739363).

Almost surely, 2^47117443540 is an apocalyptic number.

It is an amenable number.

47117443540 is an abundant number, since it is smaller than the sum of its proper divisors (56982045884).

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

47117443540 is a wasteful number, since it uses less digits than its factorization.

47117443540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553068 (or 1553066 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 47117443540 in words is "forty-seven billion, one hundred seventeen million, four hundred forty-three thousand, five hundred forty".