69836425781249 has 2 divisors, whose sum is σ = 69836425781250. Its totient is φ = 69836425781248.

The previous prime is 69836425781231. The next prime is 69836425781273. The reversal of 69836425781249 is 94218752463896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51035807284225 + 18800618497024 = 7143935^2 + 4335968^2 .

It is a cyclic number.

It is a trimorphic number since its cube, 340601073477941020090430975169836425781249, ends in 69836425781249.

It is not a de Polignac number, because 69836425781249 - 2¹⁶ = 69836425715713 is a prime.

It is not a weakly prime, because it can be changed into another prime (69836425781209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34918212890624 + 34918212890625.

It is an arithmetic number, because the mean of its divisors is an integer number (34918212890625).

Almost surely, 2^{69836425781249} is an apocalyptic number.

It is an amenable number.

69836425781249 is a deficient number, since it is larger than the sum of its proper divisors (1).

69836425781249 is an equidigital number, since it uses as much as digits as its factorization.

69836425781249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1254113280, while the sum is 74.

The spelling of 69836425781249 in words is "sixty-nine trillion, eight hundred thirty-six billion, four hundred twenty-five million, seven hundred eighty-one thousand, two hundred forty-nine".