47157731713 has 2 divisors, whose sum is σ = 47157731714. Its totient is φ = 47157731712.

The previous prime is 47157731707. The next prime is 47157731717. The reversal of 47157731713 is 31713775174.

47157731713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43440146929 + 3717584784 = 208423^2 + 60972^2 .

It is a cyclic number.

It is not a de Polignac number, because 47157731713 - 2¹³ = 47157723521 is a prime.

It is not a weakly prime, because it can be changed into another prime (47157731717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23578865856 + 23578865857.

It is an arithmetic number, because the mean of its divisors is an integer number (23578865857).

Almost surely, 2^47157731713 is an apocalyptic number.

It is an amenable number.

47157731713 is a deficient number, since it is larger than the sum of its proper divisors (1).

47157731713 is an equidigital number, since it uses as much as digits as its factorization.

47157731713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432180, while the sum is 46.

The spelling of 47157731713 in words is "forty-seven billion, one hundred fifty-seven million, seven hundred thirty-one thousand, seven hundred thirteen".