19699090753 has 2 divisors, whose sum is σ = 19699090754. Its totient is φ = 19699090752.

The previous prime is 19699090711. The next prime is 19699090759. The reversal of 19699090753 is 35709099691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15127032064 + 4572058689 = 122992^2 + 67617^2 .

It is a cyclic number.

It is not a de Polignac number, because 19699090753 - 2⁹ = 19699090241 is a prime.

It is a super-3 number, since 3×19699090753³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (19699090759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9849545376 + 9849545377.

It is an arithmetic number, because the mean of its divisors is an integer number (9849545377).

Almost surely, 2^19699090753 is an apocalyptic number.

It is an amenable number.

19699090753 is a deficient number, since it is larger than the sum of its proper divisors (1).

19699090753 is an equidigital number, since it uses as much as digits as its factorization.

19699090753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4133430, while the sum is 58.

The spelling of 19699090753 in words is "nineteen billion, six hundred ninety-nine million, ninety thousand, seven hundred fifty-three".