69200921897 has 2 divisors, whose sum is σ = 69200921898. Its totient is φ = 69200921896.

The previous prime is 69200921873. The next prime is 69200921899. The reversal of 69200921897 is 79812900296.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44851191961 + 24349729936 = 211781^2 + 156044^2 .

It is a cyclic number.

It is not a de Polignac number, because 69200921897 - 2¹⁴ = 69200905513 is a prime.

Together with 69200921899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69200921899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34600460948 + 34600460949.

It is an arithmetic number, because the mean of its divisors is an integer number (34600460949).

Almost surely, 2^69200921897 is an apocalyptic number.

It is an amenable number.

69200921897 is a deficient number, since it is larger than the sum of its proper divisors (1).

69200921897 is an equidigital number, since it uses as much as digits as its factorization.

69200921897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 69200921897 in words is "sixty-nine billion, two hundred million, nine hundred twenty-one thousand, eight hundred ninety-seven".