10428857538 has 48 divisors (see below), whose sum is σ = 23032321056. Its totient is φ = 3122048320.

The previous prime is 10428857513. The next prime is 10428857567. The reversal of 10428857538 is 83575882401.

It is a super-2 number, since 2×10428857538² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 443206 + ... + 466142.

It is an arithmetic number, because the mean of its divisors is an integer number (479840022).

Almost surely, 2^10428857538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10428857538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11516160528).

10428857538 is an abundant number, since it is smaller than the sum of its proper divisors (12603463518).

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

10428857538 is a wasteful number, since it uses less digits than its factorization.

10428857538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23119 (or 23036 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 10428857538 in words is "ten billion, four hundred twenty-eight million, eight hundred fifty-seven thousand, five hundred thirty-eight".