49724669651 has 2 divisors, whose sum is σ = 49724669652. Its totient is φ = 49724669650.

The previous prime is 49724669647. The next prime is 49724669689. The reversal of 49724669651 is 15696642794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49724669651 - 2² = 49724669647 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (49724069651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24862334825 + 24862334826.

It is an arithmetic number, because the mean of its divisors is an integer number (24862334826).

Almost surely, 2^49724669651 is an apocalyptic number.

49724669651 is a deficient number, since it is larger than the sum of its proper divisors (1).

49724669651 is an equidigital number, since it uses as much as digits as its factorization.

49724669651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 49724669651 in words is "forty-nine billion, seven hundred twenty-four million, six hundred sixty-nine thousand, six hundred fifty-one".