47655340720 has 40 divisors (see below), whose sum is σ = 119321644176. Its totient is φ = 17595817728.

The previous prime is 47655340717. The next prime is 47655340721. The reversal of 47655340720 is 2704355674.

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

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

It is not an unprimeable number, because it can be changed into a prime (47655340721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22910182 + ... + 22912261.

Almost surely, 2^47655340720 is an apocalyptic number.

47655340720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47655340720 is an abundant number, since it is smaller than the sum of its proper divisors (71666303456).

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

47655340720 is a wasteful number, since it uses less digits than its factorization.

47655340720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45822469 (or 45822463 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 47655340720 in words is "forty-seven billion, six hundred fifty-five million, three hundred forty thousand, seven hundred twenty".