10512389440 has 168 divisors, whose sum is σ = 29354434560. Its totient is φ = 3575190528.

The previous prime is 10512389417. The next prime is 10512389443. The reversal of 10512389440 is 4498321501.

It is a super-2 number, since 2×10512389440² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10512389440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10512389443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1988721 + ... + 1993999.

Almost surely, 2^10512389440 is an apocalyptic number.

10512389440 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 10512389440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14677217280).

10512389440 is an abundant number, since it is smaller than the sum of its proper divisors (18842045120).

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

10512389440 is a wasteful number, since it uses less digits than its factorization.

10512389440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 10512389440 in words is "ten billion, five hundred twelve million, three hundred eighty-nine thousand, four hundred forty".