19272657073 has 8 divisors (see below), whose sum is σ = 19679279688. Its totient is φ = 18869889024.

The previous prime is 19272657043. The next prime is 19272657083. The reversal of 19272657073 is 37075627291.

It can be written as a sum of positive squares in 4 ways, for example, as 10814544049 + 8458113024 = 103993^2 + 91968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19272657073 - 2²¹ = 19270559921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19272657013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953536 + ... + 973537.

It is an arithmetic number, because the mean of its divisors is an integer number (2459909961).

Almost surely, 2^19272657073 is an apocalyptic number.

It is an amenable number.

19272657073 is a deficient number, since it is larger than the sum of its proper divisors (406622615).

19272657073 is a wasteful number, since it uses less digits than its factorization.

19272657073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927283.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 19272657073 in words is "nineteen billion, two hundred seventy-two million, six hundred fifty-seven thousand, seventy-three".