19570906404 has 36 divisors (see below), whose sum is σ = 56538174784. Its totient is φ = 5591687472.

The previous prime is 19570906403. The next prime is 19570906409. The reversal of 19570906404 is 40460907591.

19570906404 is a `hidden beast` number, since 1 + 95 + 70 + 90 + 6 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×19570906404² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19570906404.

It is not an unprimeable number, because it can be changed into a prime (19570906403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38830912 + ... + 38831415.

Almost surely, 2^19570906404 is an apocalyptic number.

19570906404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19570906404 is an abundant number, since it is smaller than the sum of its proper divisors (36967268380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19570906404 is a wasteful number, since it uses less digits than its factorization.

19570906404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77662344 (or 77662339 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 19570906404 in words is "nineteen billion, five hundred seventy million, nine hundred six thousand, four hundred four".