10391449600 has 468 divisors, whose sum is σ = 31841693400. Its totient is φ = 3344302080.

The previous prime is 10391449577. The next prime is 10391449609. The reversal of 10391449600 is 694419301.

It is a self number, because there is not a number n which added to its sum of digits gives 10391449600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10391449609) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 95334346 + ... + 95334454.

Almost surely, 2^10391449600 is an apocalyptic number.

10391449600 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 10391449600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15920846700).

10391449600 is an abundant number, since it is smaller than the sum of its proper divisors (21450243800).

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

10391449600 is a wasteful number, since it uses less digits than its factorization.

10391449600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 10391449600 in words is "ten billion, three hundred ninety-one million, four hundred forty-nine thousand, six hundred".