19280905107 has 4 divisors (see below), whose sum is σ = 25707873480. Its totient is φ = 12853936736.

The previous prime is 19280905103. The next prime is 19280905211. The reversal of 19280905107 is 70150908291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19280905107 - 2² = 19280905103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19280905103) 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 in 3 ways as a sum of consecutive naturals, for example, 3213484182 + ... + 3213484187.

It is an arithmetic number, because the mean of its divisors is an integer number (6426968370).

Almost surely, 2^19280905107 is an apocalyptic number.

19280905107 is a deficient number, since it is larger than the sum of its proper divisors (6426968373).

19280905107 is an equidigital number, since it uses as much as digits as its factorization.

19280905107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6426968372.

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 19280905107 in words is "nineteen billion, two hundred eighty million, nine hundred five thousand, one hundred seven".