10124721860 has 96 divisors (see below), whose sum is σ = 24324451200. Its totient is φ = 3505904640.

The previous prime is 10124721857. The next prime is 10124721869. The reversal of 10124721860 is 6812742101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10124721869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 454871 + ... + 476609.

It is an arithmetic number, because the mean of its divisors is an integer number (253379700).

Almost surely, 2^10124721860 is an apocalyptic number.

10124721860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10124721860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12162225600).

10124721860 is an abundant number, since it is smaller than the sum of its proper divisors (14199729340).

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

10124721860 is a wasteful number, since it uses less digits than its factorization.

10124721860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21861 (or 21859 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 10124721860 in words is "ten billion, one hundred twenty-four million, seven hundred twenty-one thousand, eight hundred sixty".