47644522087 has 2 divisors, whose sum is σ = 47644522088. Its totient is φ = 47644522086.

The previous prime is 47644522069. The next prime is 47644522111. The reversal of 47644522087 is 78022544674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47644522087 - 2⁷ = 47644521959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47644522087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47644522027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23822261043 + 23822261044.

It is an arithmetic number, because the mean of its divisors is an integer number (23822261044).

Almost surely, 2^47644522087 is an apocalyptic number.

47644522087 is a deficient number, since it is larger than the sum of its proper divisors (1).

47644522087 is an equidigital number, since it uses as much as digits as its factorization.

47644522087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 49.

The spelling of 47644522087 in words is "forty-seven billion, six hundred forty-four million, five hundred twenty-two thousand, eighty-seven".