10206399850 has 48 divisors (see below), whose sum is σ = 19316352960. Its totient is φ = 4011638400.

The previous prime is 10206399839. The next prime is 10206399857. The reversal of 10206399850 is 5899360201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10206399797 and 10206399806.

It is not an unprimeable number, because it can be changed into a prime (10206399857) 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, 718315 + ... + 732385.

It is an arithmetic number, because the mean of its divisors is an integer number (402424020).

Almost surely, 2^10206399850 is an apocalyptic number.

10206399850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10206399850 is a deficient number, since it is larger than the sum of its proper divisors (9109953110).

10206399850 is a wasteful number, since it uses less digits than its factorization.

10206399850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14335 (or 14330 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 10206399850 in words is "ten billion, two hundred six million, three hundred ninety-nine thousand, eight hundred fifty".