47615757987 has 48 divisors (see below), whose sum is σ = 75625630080. Its totient is φ = 26556864768.

The previous prime is 47615757977. The next prime is 47615758067. The reversal of 47615757987 is 78975751674.

It is not a de Polignac number, because 47615757987 - 2¹⁴ = 47615741603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47615757967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16806123 + ... + 16808955.

It is an arithmetic number, because the mean of its divisors is an integer number (1575533960).

Almost surely, 2^47615757987 is an apocalyptic number.

47615757987 is a deficient number, since it is larger than the sum of its proper divisors (28009872093).

47615757987 is a wasteful number, since it uses less digits than its factorization.

47615757987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552 (or 5545 counting only the distinct ones).

The product of its digits is 103723200, while the sum is 66.

The spelling of 47615757987 in words is "forty-seven billion, six hundred fifteen million, seven hundred fifty-seven thousand, nine hundred eighty-seven".