69861351149 has 2 divisors, whose sum is σ = 69861351150. Its totient is φ = 69861351148.

The previous prime is 69861351139. The next prime is 69861351229. The reversal of 69861351149 is 94115316896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64659335524 + 5202015625 = 254282^2 + 72125^2 .

It is a cyclic number.

It is not a de Polignac number, because 69861351149 - 2²⁰ = 69860302573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69861351149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69861351139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34930675574 + 34930675575.

It is an arithmetic number, because the mean of its divisors is an integer number (34930675575).

Almost surely, 2^69861351149 is an apocalyptic number.

It is an amenable number.

69861351149 is a deficient number, since it is larger than the sum of its proper divisors (1).

69861351149 is an equidigital number, since it uses as much as digits as its factorization.

69861351149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 53.

The spelling of 69861351149 in words is "sixty-nine billion, eight hundred sixty-one million, three hundred fifty-one thousand, one hundred forty-nine".