39247324693 has 2 divisors, whose sum is σ = 39247324694. Its totient is φ = 39247324692.

The previous prime is 39247324657. The next prime is 39247324717. The reversal of 39247324693 is 39642374293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34366485924 + 4880838769 = 185382^2 + 69863^2 .

It is a cyclic number.

It is not a de Polignac number, because 39247324693 - 2¹³ = 39247316501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39247324693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39247324603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19623662346 + 19623662347.

It is an arithmetic number, because the mean of its divisors is an integer number (19623662347).

Almost surely, 2^39247324693 is an apocalyptic number.

It is an amenable number.

39247324693 is a deficient number, since it is larger than the sum of its proper divisors (1).

39247324693 is an equidigital number, since it uses as much as digits as its factorization.

39247324693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 52.

The spelling of 39247324693 in words is "thirty-nine billion, two hundred forty-seven million, three hundred twenty-four thousand, six hundred ninety-three".