693756938093 has 2 divisors, whose sum is σ = 693756938094. Its totient is φ = 693756938092.

The previous prime is 693756938081. The next prime is 693756938167. The reversal of 693756938093 is 390839657396.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468926387524 + 224830550569 = 684782^2 + 474163^2 .

It is a cyclic number.

It is not a de Polignac number, because 693756938093 - 2⁶ = 693756938029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693756908093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346878469046 + 346878469047.

It is an arithmetic number, because the mean of its divisors is an integer number (346878469047).

Almost surely, 2^693756938093 is an apocalyptic number.

It is an amenable number.

693756938093 is a deficient number, since it is larger than the sum of its proper divisors (1).

693756938093 is an equidigital number, since it uses as much as digits as its factorization.

693756938093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 198404640, while the sum is 68.

The spelling of 693756938093 in words is "six hundred ninety-three billion, seven hundred fifty-six million, nine hundred thirty-eight thousand, ninety-three".