46847572181 has 2 divisors, whose sum is σ = 46847572182. Its totient is φ = 46847572180.

The previous prime is 46847572171. The next prime is 46847572193. The reversal of 46847572181 is 18127574864.

46847572181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42228195025 + 4619377156 = 205495^2 + 67966^2 .

It is a cyclic number.

It is not a de Polignac number, because 46847572181 - 2³⁰ = 45773830357 is a prime.

It is a super-2 number, since 2×46847572181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46847572141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23423786090 + 23423786091.

It is an arithmetic number, because the mean of its divisors is an integer number (23423786091).

Almost surely, 2^46847572181 is an apocalyptic number.

It is an amenable number.

46847572181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46847572181 is an equidigital number, since it uses as much as digits as its factorization.

46847572181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3010560, while the sum is 53.

The spelling of 46847572181 in words is "forty-six billion, eight hundred forty-seven million, five hundred seventy-two thousand, one hundred eighty-one".