47171891026 has 16 divisors (see below), whose sum is σ = 76955214168. Its totient is φ = 21556080000.

The previous prime is 47171891017. The next prime is 47171891047. The reversal of 47171891026 is 62019817174.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37539450001 + 9632441025 = 193751^2 + 98145^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8979075 + ... + 8984326.

Almost surely, 2^47171891026 is an apocalyptic number.

47171891026 is a deficient number, since it is larger than the sum of its proper divisors (29783323142).

47171891026 is a wasteful number, since it uses less digits than its factorization.

47171891026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17963517.

The product of its (nonzero) digits is 169344, while the sum is 46.

The spelling of 47171891026 in words is "forty-seven billion, one hundred seventy-one million, eight hundred ninety-one thousand, twenty-six".