47138720560 has 40 divisors (see below), whose sum is σ = 109628336016. Its totient is φ = 18850187520.

The previous prime is 47138720549. The next prime is 47138720569. The reversal of 47138720560 is 6502783174.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47138720569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209955 + ... + 371965.

Almost surely, 2^47138720560 is an apocalyptic number.

47138720560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47138720560 is an abundant number, since it is smaller than the sum of its proper divisors (62489615456).

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

47138720560 is a wasteful number, since it uses less digits than its factorization.

47138720560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165661 (or 165655 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 47138720560 in words is "forty-seven billion, one hundred thirty-eight million, seven hundred twenty thousand, five hundred sixty".