10840721000 has 32 divisors (see below), whose sum is σ = 25367289480. Its totient is φ = 4336288000.

The previous prime is 10840720967. The next prime is 10840721009. The reversal of 10840721000 is 12704801.

It can be written as a sum of positive squares in 4 ways, for example, as 1275489796 + 9565231204 = 35714^2 + 97802^2 .

It is not an unprimeable number, because it can be changed into a prime (10840721009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5419361 + ... + 5421360.

Almost surely, 2^10840721000 is an apocalyptic number.

10840721000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10840721000 is an abundant number, since it is smaller than the sum of its proper divisors (14526568480).

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

10840721000 is a wasteful number, since it uses less digits than its factorization.

10840721000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10840742 (or 10840728 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The spelling of 10840721000 in words is "ten billion, eight hundred forty million, seven hundred twenty-one thousand".