47651587847 has 2 divisors, whose sum is σ = 47651587848. Its totient is φ = 47651587846.

The previous prime is 47651587777. The next prime is 47651587927. The reversal of 47651587847 is 74878515674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47651587847 - 2²² = 47647393543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47651587847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47651587447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23825793923 + 23825793924.

It is an arithmetic number, because the mean of its divisors is an integer number (23825793924).

Almost surely, 2^47651587847 is an apocalyptic number.

47651587847 is a deficient number, since it is larger than the sum of its proper divisors (1).

47651587847 is an equidigital number, since it uses as much as digits as its factorization.

47651587847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52684800, while the sum is 62.

The spelling of 47651587847 in words is "forty-seven billion, six hundred fifty-one million, five hundred eighty-seven thousand, eight hundred forty-seven".