19804548475 has 24 divisors (see below), whose sum is σ = 25681293792. Its totient is φ = 15121708800.

The previous prime is 19804548457. The next prime is 19804548481. The reversal of 19804548475 is 57484540891.

It is not a de Polignac number, because 19804548475 - 2¹⁵ = 19804515707 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227719 + ... + 302431.

It is an arithmetic number, because the mean of its divisors is an integer number (1070053908).

Almost surely, 2^19804548475 is an apocalyptic number.

19804548475 is a deficient number, since it is larger than the sum of its proper divisors (5876745317).

19804548475 is a wasteful number, since it uses less digits than its factorization.

19804548475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75207 (or 75202 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 19804548475 in words is "nineteen billion, eight hundred four million, five hundred forty-eight thousand, four hundred seventy-five".