19475039807 has 2 divisors, whose sum is σ = 19475039808. Its totient is φ = 19475039806.

The previous prime is 19475039797. The next prime is 19475039851. The reversal of 19475039807 is 70893057491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19475039807 - 2¹⁶ = 19474974271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19475039887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9737519903 + 9737519904.

It is an arithmetic number, because the mean of its divisors is an integer number (9737519904).

Almost surely, 2^19475039807 is an apocalyptic number.

19475039807 is a deficient number, since it is larger than the sum of its proper divisors (1).

19475039807 is an equidigital number, since it uses as much as digits as its factorization.

19475039807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 19475039807 in words is "nineteen billion, four hundred seventy-five million, thirty-nine thousand, eight hundred seven".