19035051985 has 16 divisors (see below), whose sum is σ = 23589457920. Its totient is φ = 14730217920.

The previous prime is 19035051983. The next prime is 19035051989. The reversal of 19035051985 is 58915053091.

It is not a de Polignac number, because 19035051985 - 2¹ = 19035051983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19035051983) 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, 335296 + ... + 387934.

It is an arithmetic number, because the mean of its divisors is an integer number (1474341120).

Almost surely, 2^19035051985 is an apocalyptic number.

It is an amenable number.

19035051985 is a deficient number, since it is larger than the sum of its proper divisors (4554405935).

19035051985 is a wasteful number, since it uses less digits than its factorization.

19035051985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55008.

The product of its (nonzero) digits is 243000, while the sum is 46.

The spelling of 19035051985 in words is "nineteen billion, thirty-five million, fifty-one thousand, nine hundred eighty-five".