19975268011 has 2 divisors, whose sum is σ = 19975268012. Its totient is φ = 19975268010.

The previous prime is 19975267987. The next prime is 19975268017. The reversal of 19975268011 is 11086257991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19975268011 - 2¹⁷ = 19975136939 is a prime.

It is a super-2 number, since 2×19975268011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19975268017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9987634005 + 9987634006.

It is an arithmetic number, because the mean of its divisors is an integer number (9987634006).

Almost surely, 2^19975268011 is an apocalyptic number.

19975268011 is a deficient number, since it is larger than the sum of its proper divisors (1).

19975268011 is an equidigital number, since it uses as much as digits as its factorization.

19975268011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 49.

The spelling of 19975268011 in words is "nineteen billion, nine hundred seventy-five million, two hundred sixty-eight thousand, eleven".