20837144898 has 24 divisors (see below), whose sum is σ = 45150241968. Its totient is φ = 6945238872.

The previous prime is 20837144891. The next prime is 20837144899. The reversal of 20837144898 is 89844173802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20837144891) 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, 316765 + ... + 376847.

It is an arithmetic number, because the mean of its divisors is an integer number (1881260082).

Almost surely, 2^20837144898 is an apocalyptic number.

20837144898 is an abundant number, since it is smaller than the sum of its proper divisors (24313097070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20837144898 is a wasteful number, since it uses less digits than its factorization.

20837144898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79358 (or 79355 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 20837144898 in words is "twenty billion, eight hundred thirty-seven million, one hundred forty-four thousand, eight hundred ninety-eight".