47045545831 has 2 divisors, whose sum is σ = 47045545832. Its totient is φ = 47045545830.

The previous prime is 47045545747. The next prime is 47045545873. The reversal of 47045545831 is 13854554074.

47045545831 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 is a cyclic number.

It is not a de Polignac number, because 47045545831 - 2²⁵ = 47011991399 is a prime.

It is a super-2 number, since 2×47045545831² (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 (47045545031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23522772915 + 23522772916.

It is an arithmetic number, because the mean of its divisors is an integer number (23522772916).

Almost surely, 2^47045545831 is an apocalyptic number.

47045545831 is a deficient number, since it is larger than the sum of its proper divisors (1).

47045545831 is an equidigital number, since it uses as much as digits as its factorization.

47045545831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 47045545831 in words is "forty-seven billion, forty-five million, five hundred forty-five thousand, eight hundred thirty-one".