39247248769 has 2 divisors, whose sum is σ = 39247248770. Its totient is φ = 39247248768.

The previous prime is 39247248727. The next prime is 39247248841. The reversal of 39247248769 is 96784274293.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33456799744 + 5790449025 = 182912^2 + 76095^2 .

It is a cyclic number.

It is not a de Polignac number, because 39247248769 - 2¹¹ = 39247246721 is a prime.

It is a super-2 number, since 2×39247248769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39247246769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19623624384 + 19623624385.

It is an arithmetic number, because the mean of its divisors is an integer number (19623624385).

Almost surely, 2^39247248769 is an apocalyptic number.

It is an amenable number.

39247248769 is a deficient number, since it is larger than the sum of its proper divisors (1).

39247248769 is an equidigital number, since it uses as much as digits as its factorization.

39247248769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 61.

The spelling of 39247248769 in words is "thirty-nine billion, two hundred forty-seven million, two hundred forty-eight thousand, seven hundred sixty-nine".