47225643847 has 2 divisors, whose sum is σ = 47225643848. Its totient is φ = 47225643846.

The previous prime is 47225643821. The next prime is 47225643859. The reversal of 47225643847 is 74834652274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47225643847 - 2³¹ = 45078160199 is a prime.

It is a super-2 number, since 2×47225643847² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47225643794 and 47225643803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47225641847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23612821923 + 23612821924.

It is an arithmetic number, because the mean of its divisors is an integer number (23612821924).

Almost surely, 2^47225643847 is an apocalyptic number.

47225643847 is a deficient number, since it is larger than the sum of its proper divisors (1).

47225643847 is an equidigital number, since it uses as much as digits as its factorization.

47225643847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9031680, while the sum is 52.

The spelling of 47225643847 in words is "forty-seven billion, two hundred twenty-five million, six hundred forty-three thousand, eight hundred forty-seven".