20831466798 has 24 divisors (see below), whose sum is σ = 45437769000. Its totient is φ = 6897218544.

The previous prime is 20831466797. The next prime is 20831466809. The reversal of 20831466798 is 89766413802.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20831466797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3880888 + ... + 3886251.

It is an arithmetic number, because the mean of its divisors is an integer number (1893240375).

Almost surely, 2^20831466798 is an apocalyptic number.

20831466798 is an abundant number, since it is smaller than the sum of its proper divisors (24606302202).

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

20831466798 is a wasteful number, since it uses less digits than its factorization.

20831466798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767296 (or 7767293 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 20831466798 in words is "twenty billion, eight hundred thirty-one million, four hundred sixty-six thousand, seven hundred ninety-eight".