47816155947 has 8 divisors (see below), whose sum is σ = 72862713856. Its totient is φ = 27323517672.

The previous prime is 47816155903. The next prime is 47816155951. The reversal of 47816155947 is 74955161874.

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

It is not a de Polignac number, because 47816155947 - 2⁸ = 47816155691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47816155967) 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, 1138479883 + ... + 1138479924.

It is an arithmetic number, because the mean of its divisors is an integer number (9107839232).

Almost surely, 2^47816155947 is an apocalyptic number.

47816155947 is a deficient number, since it is larger than the sum of its proper divisors (25046557909).

47816155947 is a wasteful number, since it uses less digits than its factorization.

47816155947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276959817.

The product of its digits is 8467200, while the sum is 57.

The spelling of 47816155947 in words is "forty-seven billion, eight hundred sixteen million, one hundred fifty-five thousand, nine hundred forty-seven".