19293008697 has 24 divisors (see below), whose sum is σ = 28086871176. Its totient is φ = 12760947456.

The previous prime is 19293008687. The next prime is 19293008717. The reversal of 19293008697 is 79680039291.

It can be written as a sum of positive squares in 4 ways, for example, as 3753890361 + 15539118336 = 61269^2 + 124656^2 .

It is not a de Polignac number, because 19293008697 - 2⁴ = 19293008681 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19293008687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3050983 + ... + 3057299.

It is an arithmetic number, because the mean of its divisors is an integer number (1170286299).

Almost surely, 2^19293008697 is an apocalyptic number.

It is an amenable number.

19293008697 is a deficient number, since it is larger than the sum of its proper divisors (8793862479).

19293008697 is a wasteful number, since it uses less digits than its factorization.

19293008697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8937 (or 8934 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 19293008697 in words is "nineteen billion, two hundred ninety-three million, eight thousand, six hundred ninety-seven".