69650973421 has 2 divisors, whose sum is σ = 69650973422. Its totient is φ = 69650973420.

The previous prime is 69650973409. The next prime is 69650973451. The reversal of 69650973421 is 12437905696.

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., 65928265225 + 3722708196 = 256765^2 + 61014^2 .

It is a cyclic number.

It is not a de Polignac number, because 69650973421 - 2²⁹ = 69114102509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69650973401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34825486710 + 34825486711.

It is an arithmetic number, because the mean of its divisors is an integer number (34825486711).

Almost surely, 2^69650973421 is an apocalyptic number.

It is an amenable number.

69650973421 is a deficient number, since it is larger than the sum of its proper divisors (1).

69650973421 is an equidigital number, since it uses as much as digits as its factorization.

69650973421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 69650973421 in words is "sixty-nine billion, six hundred fifty million, nine hundred seventy-three thousand, four hundred twenty-one".