47017145240 has 96 divisors (see below), whose sum is σ = 117346773600. Its totient is φ = 16936657920.

The previous prime is 47017145237. The next prime is 47017145257. The reversal of 47017145240 is 4254171074.

47017145240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47017145240² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47017145240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192341 + ... + 361979.

It is an arithmetic number, because the mean of its divisors is an integer number (1222362225).

Almost surely, 2^47017145240 is an apocalyptic number.

47017145240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47017145240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58673386800).

47017145240 is an abundant number, since it is smaller than the sum of its proper divisors (70329628360).

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

47017145240 is a wasteful number, since it uses less digits than its factorization.

47017145240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169717 (or 169700 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The spelling of 47017145240 in words is "forty-seven billion, seventeen million, one hundred forty-five thousand, two hundred forty".