47817666543 has 16 divisors (see below), whose sum is σ = 64743954912. Its totient is φ = 31388400000.

The previous prime is 47817666527. The next prime is 47817666577. The reversal of 47817666543 is 34566671874.

It is not a de Polignac number, because 47817666543 - 2⁴ = 47817666527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47817666503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381108 + ... + 490793.

It is an arithmetic number, because the mean of its divisors is an integer number (4046497182).

Almost surely, 2^47817666543 is an apocalyptic number.

47817666543 is a deficient number, since it is larger than the sum of its proper divisors (16926288369).

47817666543 is a wasteful number, since it uses less digits than its factorization.

47817666543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872186.

The product of its digits is 20321280, while the sum is 57.

The spelling of 47817666543 in words is "forty-seven billion, eight hundred seventeen million, six hundred sixty-six thousand, five hundred forty-three".