10509840450 has 48 divisors (see below), whose sum is σ = 28960452960. Its totient is φ = 2802623760.

The previous prime is 10509840449. The next prime is 10509840499. The reversal of 10509840450 is 5404890501.

It is a super-2 number, since 2×10509840450² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3891184 + ... + 3893883.

It is an arithmetic number, because the mean of its divisors is an integer number (603342770).

Almost surely, 2^10509840450 is an apocalyptic number.

10509840450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10509840450 is an abundant number, since it is smaller than the sum of its proper divisors (18450612510).

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

10509840450 is a wasteful number, since it uses less digits than its factorization.

10509840450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785088 (or 7785077 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 10509840450 in words is "ten billion, five hundred nine million, eight hundred forty thousand, four hundred fifty".