69396864421 has 2 divisors, whose sum is σ = 69396864422. Its totient is φ = 69396864420.

The previous prime is 69396864403. The next prime is 69396864437. The reversal of 69396864421 is 12446869396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64052523396 + 5344341025 = 253086^2 + 73105^2 .

It is a cyclic number.

It is not a de Polignac number, because 69396864421 - 2¹¹ = 69396862373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69396864451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34698432210 + 34698432211.

It is an arithmetic number, because the mean of its divisors is an integer number (34698432211).

Almost surely, 2^69396864421 is an apocalyptic number.

It is an amenable number.

69396864421 is a deficient number, since it is larger than the sum of its proper divisors (1).

69396864421 is an equidigital number, since it uses as much as digits as its factorization.

69396864421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 58.

The spelling of 69396864421 in words is "sixty-nine billion, three hundred ninety-six million, eight hundred sixty-four thousand, four hundred twenty-one".