49724669647 has 2 divisors, whose sum is σ = 49724669648. Its totient is φ = 49724669646.

The previous prime is 49724669557. The next prime is 49724669651. The reversal of 49724669647 is 74696642794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49724669647 - 2²³ = 49716281039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49724669347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24862334823 + 24862334824.

It is an arithmetic number, because the mean of its divisors is an integer number (24862334824).

Almost surely, 2^49724669647 is an apocalyptic number.

49724669647 is a deficient number, since it is larger than the sum of its proper divisors (1).

49724669647 is an equidigital number, since it uses as much as digits as its factorization.

49724669647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109734912, while the sum is 64.

The spelling of 49724669647 in words is "forty-nine billion, seven hundred twenty-four million, six hundred sixty-nine thousand, six hundred forty-seven".