69157199393 has 2 divisors, whose sum is σ = 69157199394. Its totient is φ = 69157199392.

The previous prime is 69157199387. The next prime is 69157199491. The reversal of 69157199393 is 39399175196.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68928826849 + 228372544 = 262543^2 + 15112^2 .

It is a cyclic number.

It is not a de Polignac number, because 69157199393 - 2⁶ = 69157199329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (69157199303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34578599696 + 34578599697.

It is an arithmetic number, because the mean of its divisors is an integer number (34578599697).

Almost surely, 2^69157199393 is an apocalyptic number.

It is an amenable number.

69157199393 is a deficient number, since it is larger than the sum of its proper divisors (1).

69157199393 is an equidigital number, since it uses as much as digits as its factorization.

69157199393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12400290, while the sum is 62.

The spelling of 69157199393 in words is "sixty-nine billion, one hundred fifty-seven million, one hundred ninety-nine thousand, three hundred ninety-three".