47817666527 has 2 divisors, whose sum is σ = 47817666528. Its totient is φ = 47817666526.

The previous prime is 47817666503. The next prime is 47817666577. The reversal of 47817666527 is 72566671874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47817666527 - 2¹⁴ = 47817650143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47817666577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23908833263 + 23908833264.

It is an arithmetic number, because the mean of its divisors is an integer number (23908833264).

Almost surely, 2^47817666527 is an apocalyptic number.

47817666527 is a deficient number, since it is larger than the sum of its proper divisors (1).

47817666527 is an equidigital number, since it uses as much as digits as its factorization.

47817666527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 59.

The spelling of 47817666527 in words is "forty-seven billion, eight hundred seventeen million, six hundred sixty-six thousand, five hundred twenty-seven".