69780257653 has 2 divisors, whose sum is σ = 69780257654. Its totient is φ = 69780257652.

The previous prime is 69780257611. The next prime is 69780257683. The reversal of 69780257653 is 35675208796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56388676369 + 13391581284 = 237463^2 + 115722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69780257653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69780257683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34890128826 + 34890128827.

It is an arithmetic number, because the mean of its divisors is an integer number (34890128827).

Almost surely, 2^69780257653 is an apocalyptic number.

It is an amenable number.

69780257653 is a deficient number, since it is larger than the sum of its proper divisors (1).

69780257653 is an equidigital number, since it uses as much as digits as its factorization.

69780257653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 69780257653 in words is "sixty-nine billion, seven hundred eighty million, two hundred fifty-seven thousand, six hundred fifty-three".