47749832520 has 128 divisors (see below), whose sum is σ = 162388195200. Its totient is φ = 11135176704.

The previous prime is 47749832443. The next prime is 47749832531. The reversal of 47749832520 is 2523894774.

47749832520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775857 + ... + 835136.

It is an arithmetic number, because the mean of its divisors is an integer number (1268657775).

Almost surely, 2^47749832520 is an apocalyptic number.

47749832520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47749832520 is an abundant number, since it is smaller than the sum of its proper divisors (114638362680).

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

47749832520 is a wasteful number, since it uses less digits than its factorization.

47749832520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611039 (or 1611035 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 47749832520 in words is "forty-seven billion, seven hundred forty-nine million, eight hundred thirty-two thousand, five hundred twenty".