47255744387 has 2 divisors, whose sum is σ = 47255744388. Its totient is φ = 47255744386.

The previous prime is 47255744377. The next prime is 47255744399. The reversal of 47255744387 is 78344755274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47255744387 - 2²⁰ = 47254695811 is a prime.

It is not a weakly prime, because it can be changed into another prime (47255744377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23627872193 + 23627872194.

It is an arithmetic number, because the mean of its divisors is an integer number (23627872194).

Almost surely, 2^47255744387 is an apocalyptic number.

47255744387 is a deficient number, since it is larger than the sum of its proper divisors (1).

47255744387 is an equidigital number, since it uses as much as digits as its factorization.

47255744387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26342400, while the sum is 56.

The spelling of 47255744387 in words is "forty-seven billion, two hundred fifty-five million, seven hundred forty-four thousand, three hundred eighty-seven".