47696931987 has 16 divisors (see below), whose sum is σ = 64006625280. Its totient is φ = 31593002400.

The previous prime is 47696931983. The next prime is 47696931991. The reversal of 47696931987 is 78913969674.

It is an interprime number because it is at equal distance from previous prime (47696931983) and next prime (47696931991).

It is not a de Polignac number, because 47696931987 - 2² = 47696931983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47696931983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424812 + ... + 525222.

It is an arithmetic number, because the mean of its divisors is an integer number (4000414080).

Almost surely, 2^47696931987 is an apocalyptic number.

47696931987 is a deficient number, since it is larger than the sum of its proper divisors (16309693293).

47696931987 is a wasteful number, since it uses less digits than its factorization.

47696931987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101434.

The product of its digits is 123451776, while the sum is 69.

The spelling of 47696931987 in words is "forty-seven billion, six hundred ninety-six million, nine hundred thirty-one thousand, nine hundred eighty-seven".