69780764281313 has 2 divisors, whose sum is σ = 69780764281314. Its totient is φ = 69780764281312.

The previous prime is 69780764281307. The next prime is 69780764281357. The reversal of 69780764281313 is 31318246708796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69308488829584 + 472275451729 = 8325172^2 + 687223^2 .

It is a cyclic number.

It is not a de Polignac number, because 69780764281313 - 2²² = 69780760087009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69780764281313.

It is not a weakly prime, because it can be changed into another prime (69780764287313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34890382140656 + 34890382140657.

It is an arithmetic number, because the mean of its divisors is an integer number (34890382140657).

Almost surely, 2^{69780764281313} is an apocalyptic number.

It is an amenable number.

69780764281313 is a deficient number, since it is larger than the sum of its proper divisors (1).

69780764281313 is an equidigital number, since it uses as much as digits as its factorization.

69780764281313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 69780764281313 in words is "sixty-nine trillion, seven hundred eighty billion, seven hundred sixty-four million, two hundred eighty-one thousand, three hundred thirteen".