20272273087 has 12 divisors (see below), whose sum is σ = 22288168728. Its totient is φ = 18424854800.

The previous prime is 20272273039. The next prime is 20272273093. The reversal of 20272273087 is 78037227202.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20272273087 is a prime.

It is a super-2 number, since 2×20272273087² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272273487) 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 11 ways as a sum of consecutive naturals, for example, 543012 + ... + 579142.

It is an arithmetic number, because the mean of its divisors is an integer number (1857347394).

Almost surely, 2^20272273087 is an apocalyptic number.

20272273087 is a deficient number, since it is larger than the sum of its proper divisors (2015895641).

20272273087 is a wasteful number, since it uses less digits than its factorization.

20272273087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40790 (or 40779 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 20272273087 in words is "twenty billion, two hundred seventy-two million, two hundred seventy-three thousand, eighty-seven".