69781835008139 has 2 divisors, whose sum is σ = 69781835008140. Its totient is φ = 69781835008138.

The previous prime is 69781835008063. The next prime is 69781835008181. The reversal of 69781835008139 is 93180053818796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69781835008139 - 2⁸ = 69781835007883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (69781835098139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34890917504069 + 34890917504070.

It is an arithmetic number, because the mean of its divisors is an integer number (34890917504070).

Almost surely, 2^{69781835008139} is an apocalyptic number.

69781835008139 is a deficient number, since it is larger than the sum of its proper divisors (1).

69781835008139 is an equidigital number, since it uses as much as digits as its factorization.

69781835008139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 69781835008139 in words is "sixty-nine trillion, seven hundred eighty-one billion, eight hundred thirty-five million, eight thousand, one hundred thirty-nine".