20273230784 has 14 divisors (see below), whose sum is σ = 40229692464. Its totient is φ = 10136615360.

The previous prime is 20273230777. The next prime is 20273230799. The reversal of 20273230784 is 48703237202.

It is a happy number.

It is a super-2 number, since 2×20273230784² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158384552 + ... + 158384679.

Almost surely, 2^20273230784 is an apocalyptic number.

It is an amenable number.

20273230784 is a deficient number, since it is larger than the sum of its proper divisors (19956461680).

20273230784 is an equidigital number, since it uses as much as digits as its factorization.

20273230784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316769243 (or 316769233 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

Adding to 20273230784 its reverse (48703237202), we get a palindrome (68976467986).

The spelling of 20273230784 in words is "twenty billion, two hundred seventy-three million, two hundred thirty thousand, seven hundred eighty-four".