19135702065 has 16 divisors (see below), whose sum is σ = 31036537728. Its totient is φ = 10065902976.

The previous prime is 19135702051. The next prime is 19135702067. The reversal of 19135702065 is 56020753191.

It is not a de Polignac number, because 19135702065 - 2⁴ = 19135702049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19135702067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8736669 + ... + 8738858.

It is an arithmetic number, because the mean of its divisors is an integer number (1939783608).

Almost surely, 2^19135702065 is an apocalyptic number.

19135702065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19135702065 is a deficient number, since it is larger than the sum of its proper divisors (11900835663).

19135702065 is a wasteful number, since it uses less digits than its factorization.

19135702065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17475608.

The product of its (nonzero) digits is 56700, while the sum is 39.

The spelling of 19135702065 in words is "nineteen billion, one hundred thirty-five million, seven hundred two thousand, sixty-five".