20489875126 has 32 divisors (see below), whose sum is σ = 35306208000. Its totient is φ = 8736314400.

The previous prime is 20489875111. The next prime is 20489875127. The reversal of 20489875126 is 62157898402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20489875127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307936 + ... + 2316796.

It is an arithmetic number, because the mean of its divisors is an integer number (1103319000).

Almost surely, 2^20489875126 is an apocalyptic number.

20489875126 is a deficient number, since it is larger than the sum of its proper divisors (14816332874).

20489875126 is a wasteful number, since it uses less digits than its factorization.

20489875126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9700.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 20489875126 in words is "twenty billion, four hundred eighty-nine million, eight hundred seventy-five thousand, one hundred twenty-six".