47136807961 has 2 divisors, whose sum is σ = 47136807962. Its totient is φ = 47136807960.

The previous prime is 47136807931. The next prime is 47136808007. The reversal of 47136807961 is 16970863174.

47136807961 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., 37454247961 + 9682560000 = 193531^2 + 98400^2 .

It is a cyclic number.

It is not a de Polignac number, because 47136807961 - 2⁹ = 47136807449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47136807899 and 47136807908.

It is not a weakly prime, because it can be changed into another prime (47136807931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23568403980 + 23568403981.

It is an arithmetic number, because the mean of its divisors is an integer number (23568403981).

Almost surely, 2^47136807961 is an apocalyptic number.

It is an amenable number.

47136807961 is a deficient number, since it is larger than the sum of its proper divisors (1).

47136807961 is an equidigital number, since it uses as much as digits as its factorization.

47136807961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 47136807961 in words is "forty-seven billion, one hundred thirty-six million, eight hundred seven thousand, nine hundred sixty-one".