47156314561 has 2 divisors, whose sum is σ = 47156314562. Its totient is φ = 47156314560.

The previous prime is 47156314537. The next prime is 47156314589. The reversal of 47156314561 is 16541365174.

47156314561 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., 28171608336 + 18984706225 = 167844^2 + 137785^2 .

It is a cyclic number.

It is not a de Polignac number, because 47156314561 - 2¹³ = 47156306369 is a prime.

It is not a weakly prime, because it can be changed into another prime (47156344561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23578157280 + 23578157281.

It is an arithmetic number, because the mean of its divisors is an integer number (23578157281).

Almost surely, 2^47156314561 is an apocalyptic number.

It is an amenable number.

47156314561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47156314561 is an equidigital number, since it uses as much as digits as its factorization.

47156314561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 47156314561 in words is "forty-seven billion, one hundred fifty-six million, three hundred fourteen thousand, five hundred sixty-one".