47988765771 has 8 divisors (see below), whose sum is σ = 66766978560. Its totient is φ = 30601531752.

The previous prime is 47988765761. The next prime is 47988765791. The reversal of 47988765771 is 17756788974.

47988765771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47988765771 - 2⁹ = 47988765259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 695489359 = 47988765771 / (4 + 7 + 9 + 8 + 8 + 7 + 6 + 5 + 7 + 7 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 47988765696 and 47988765705.

It is not an unprimeable number, because it can be changed into a prime (47988765761) 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, 347744611 + ... + 347744748.

It is an arithmetic number, because the mean of its divisors is an integer number (8345872320).

Almost surely, 2^47988765771 is an apocalyptic number.

47988765771 is a deficient number, since it is larger than the sum of its proper divisors (18778212789).

47988765771 is a wasteful number, since it uses less digits than its factorization.

47988765771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695489385.

The product of its digits is 165957120, while the sum is 69.

The spelling of 47988765771 in words is "forty-seven billion, nine hundred eighty-eight million, seven hundred sixty-five thousand, seven hundred seventy-one".