47438773231 has 2 divisors, whose sum is σ = 47438773232. Its totient is φ = 47438773230.

The previous prime is 47438773189. The next prime is 47438773253. The reversal of 47438773231 is 13237783474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47438773231 - 2⁷ = 47438773103 is a prime.

It is a super-2 number, since 2×47438773231² (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 (47438773271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23719386615 + 23719386616.

It is an arithmetic number, because the mean of its divisors is an integer number (23719386616).

Almost surely, 2^47438773231 is an apocalyptic number.

47438773231 is a deficient number, since it is larger than the sum of its proper divisors (1).

47438773231 is an equidigital number, since it uses as much as digits as its factorization.

47438773231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 49.

The spelling of 47438773231 in words is "forty-seven billion, four hundred thirty-eight million, seven hundred seventy-three thousand, two hundred thirty-one".