47475858729 has 24 divisors (see below), whose sum is σ = 70397622912. Its totient is φ = 28426282560.

The previous prime is 47475858713. The next prime is 47475858743. The reversal of 47475858729 is 92785857474.

It is not a de Polignac number, because 47475858729 - 2⁴ = 47475858713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47475858729.

It is not an unprimeable number, because it can be changed into a prime (47475859729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1246657 + ... + 1284174.

It is an arithmetic number, because the mean of its divisors is an integer number (2933234288).

Almost surely, 2^47475858729 is an apocalyptic number.

It is an amenable number.

47475858729 is a deficient number, since it is larger than the sum of its proper divisors (22921764183).

47475858729 is a wasteful number, since it uses less digits than its factorization.

47475858729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530897 (or 2530884 counting only the distinct ones).

The product of its digits is 158054400, while the sum is 66.

The spelling of 47475858729 in words is "forty-seven billion, four hundred seventy-five million, eight hundred fifty-eight thousand, seven hundred twenty-nine".