20019272919 has 32 divisors (see below), whose sum is σ = 27584194560. Its totient is φ = 12907579392.

The previous prime is 20019272893. The next prime is 20019272921. The reversal of 20019272919 is 91927291002.

It is not a de Polignac number, because 20019272919 - 2²⁴ = 20002495703 is a prime.

It is a super-2 number, since 2×20019272919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20019272219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8378577 + ... + 8380965.

It is an arithmetic number, because the mean of its divisors is an integer number (862006080).

Almost surely, 2^20019272919 is an apocalyptic number.

20019272919 is a deficient number, since it is larger than the sum of its proper divisors (7564921641).

20019272919 is a wasteful number, since it uses less digits than its factorization.

20019272919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 20019272919 in words is "twenty billion, nineteen million, two hundred seventy-two thousand, nine hundred nineteen".