10000019969 has 2 divisors, whose sum is σ = 10000019970. Its totient is φ = 10000019968.

The previous prime is 10000019957. The next prime is 10000019977. The reversal of 10000019969 is 96991000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9289104400 + 710915569 = 96380^2 + 26663^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000019969 - 2³² = 5705052673 is a prime.

It is a super-2 number, since 2×10000019969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10000019989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000009984 + 5000009985.

It is an arithmetic number, because the mean of its divisors is an integer number (5000009985).

Almost surely, 2^10000019969 is an apocalyptic number.

It is an amenable number.

10000019969 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000019969 is an equidigital number, since it uses as much as digits as its factorization.

10000019969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 35.

The spelling of 10000019969 in words is "ten billion, nineteen thousand, nine hundred sixty-nine".