47225635643 has 2 divisors, whose sum is σ = 47225635644. Its totient is φ = 47225635642.

The previous prime is 47225635621. The next prime is 47225635657. The reversal of 47225635643 is 34653652274.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47225635643 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (47225635603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23612817821 + 23612817822.

It is an arithmetic number, because the mean of its divisors is an integer number (23612817822).

Almost surely, 2^47225635643 is an apocalyptic number.

47225635643 is a deficient number, since it is larger than the sum of its proper divisors (1).

47225635643 is an equidigital number, since it uses as much as digits as its factorization.

47225635643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 47.

The spelling of 47225635643 in words is "forty-seven billion, two hundred twenty-five million, six hundred thirty-five thousand, six hundred forty-three".