47646535847 has 4 divisors (see below), whose sum is σ = 50154248280. Its totient is φ = 45138823416.

The previous prime is 47646535819. The next prime is 47646535861. The reversal of 47646535847 is 74853564674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47646535847 - 2⁸ = 47646535591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47646535877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253856188 + ... + 1253856225.

It is an arithmetic number, because the mean of its divisors is an integer number (12538562070).

Almost surely, 2^47646535847 is an apocalyptic number.

47646535847 is a deficient number, since it is larger than the sum of its proper divisors (2507712433).

47646535847 is a wasteful number, since it uses less digits than its factorization.

47646535847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507712432.

The product of its digits is 67737600, while the sum is 59.

The spelling of 47646535847 in words is "forty-seven billion, six hundred forty-six million, five hundred thirty-five thousand, eight hundred forty-seven".