10643273800 has 48 divisors (see below), whose sum is σ = 24786265140. Its totient is φ = 4250315520.

The previous prime is 10643273791. The next prime is 10643273857. The reversal of 10643273800 is 837234601.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1538679076 + 9104594724 = 39226^2 + 95418^2 .

It is a super-2 number, since 2×10643273800² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79194 + ... + 166006.

Almost surely, 2^10643273800 is an apocalyptic number.

10643273800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10643273800 is an abundant number, since it is smaller than the sum of its proper divisors (14142991340).

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

10643273800 is a wasteful number, since it uses less digits than its factorization.

10643273800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87442 (or 87433 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 10643273800 in words is "ten billion, six hundred forty-three million, two hundred seventy-three thousand, eight hundred".