19065934450 has 24 divisors (see below), whose sum is σ = 35467545780. Its totient is φ = 7625318400.

The previous prime is 19065934441. The next prime is 19065934453. The reversal of 19065934450 is 5443956091.

It can be written as a sum of positive squares in 6 ways, for example, as 22762441 + 19043172009 = 4771^2 + 137997^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19065934450.

It is not an unprimeable number, because it can be changed into a prime (19065934453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409986 + ... + 454114.

Almost surely, 2^19065934450 is an apocalyptic number.

19065934450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19065934450 is a deficient number, since it is larger than the sum of its proper divisors (16401611330).

19065934450 is a wasteful number, since it uses less digits than its factorization.

19065934450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52782 (or 52777 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 19065934450 in words is "nineteen billion, sixty-five million, nine hundred thirty-four thousand, four hundred fifty".