19693025265 has 16 divisors (see below), whose sum is σ = 31562532288. Its totient is φ = 10485049536.

The previous prime is 19693025243. The next prime is 19693025291. The reversal of 19693025265 is 56252039691.

It is a happy number.

It is not a de Polignac number, because 19693025265 - 2⁷ = 19693025137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109482 + ... + 1127091.

It is an arithmetic number, because the mean of its divisors is an integer number (1972658268).

Almost surely, 2^19693025265 is an apocalyptic number.

19693025265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19693025265 is a deficient number, since it is larger than the sum of its proper divisors (11869507023).

19693025265 is a wasteful number, since it uses less digits than its factorization.

19693025265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237168.

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 19693025265 in words is "nineteen billion, six hundred ninety-three million, twenty-five thousand, two hundred sixty-five".