47745729234 has 128 divisors (see below), whose sum is σ = 125297049600. Its totient is φ = 13188251520.

The previous prime is 47745729149. The next prime is 47745729257. The reversal of 47745729234 is 43292754774.

47745729234 is a `hidden beast` number, since 4 + 77 + 457 + 2 + 92 + 34 = 666.

47745729234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19415497 + ... + 19417955.

It is an arithmetic number, because the mean of its divisors is an integer number (978883200).

Almost surely, 2^47745729234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47745729234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62648524800).

47745729234 is an abundant number, since it is smaller than the sum of its proper divisors (77551320366).

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

47745729234 is a wasteful number, since it uses less digits than its factorization.

47745729234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165 (or 4159 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 47745729234 in words is "forty-seven billion, seven hundred forty-five million, seven hundred twenty-nine thousand, two hundred thirty-four".