69742017197 has 2 divisors, whose sum is σ = 69742017198. Its totient is φ = 69742017196.

The previous prime is 69742017187. The next prime is 69742017223. The reversal of 69742017197 is 79171024796.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38547039556 + 31194977641 = 196334^2 + 176621^2 .

It is a cyclic number.

It is not a de Polignac number, because 69742017197 - 2⁸ = 69742016941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69742017187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34871008598 + 34871008599.

It is an arithmetic number, because the mean of its divisors is an integer number (34871008599).

Almost surely, 2^69742017197 is an apocalyptic number.

It is an amenable number.

69742017197 is a deficient number, since it is larger than the sum of its proper divisors (1).

69742017197 is an equidigital number, since it uses as much as digits as its factorization.

69742017197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 69742017197 in words is "sixty-nine billion, seven hundred forty-two million, seventeen thousand, one hundred ninety-seven".