19225640973 has 48 divisors (see below), whose sum is σ = 33099895296. Its totient is φ = 9642857280.

The previous prime is 19225640971. The next prime is 19225640983. The reversal of 19225640973 is 37904652291.

It is not a de Polignac number, because 19225640973 - 2¹ = 19225640971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19225640971) 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 47 ways as a sum of consecutive naturals, for example, 144790 + ... + 243752.

It is an arithmetic number, because the mean of its divisors is an integer number (689581152).

Almost surely, 2^19225640973 is an apocalyptic number.

It is an amenable number.

19225640973 is a deficient number, since it is larger than the sum of its proper divisors (13874254323).

19225640973 is a wasteful number, since it uses less digits than its factorization.

19225640973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99042 (or 99013 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 19225640973 in words is "nineteen billion, two hundred twenty-five million, six hundred forty thousand, nine hundred seventy-three".