20135022874 has 32 divisors (see below), whose sum is σ = 32516409600. Its totient is φ = 9320961600.

The previous prime is 20135022851. The next prime is 20135022881. The reversal of 20135022874 is 47822053102.

It is a happy number.

It is a super-2 number, since 2×20135022874² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258324 + ... + 1274224.

It is an arithmetic number, because the mean of its divisors is an integer number (1016137800).

Almost surely, 2^20135022874 is an apocalyptic number.

20135022874 is a deficient number, since it is larger than the sum of its proper divisors (12381386726).

20135022874 is a wasteful number, since it uses less digits than its factorization.

20135022874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16678.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 20135022874 its reverse (47822053102), we get a palindrome (67957075976).

The spelling of 20135022874 in words is "twenty billion, one hundred thirty-five million, twenty-two thousand, eight hundred seventy-four".