10206399858 has 16 divisors (see below), whose sum is σ = 20414003616. Its totient is φ = 3401932640.

The previous prime is 10206399857. The next prime is 10206399869. The reversal of 10206399858 is 85899360201.

It is a happy number.

It is a super-2 number, since 2×10206399858² (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 10206399858.

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 7 ways as a sum of consecutive naturals, for example, 90310 + ... + 169022.

It is an arithmetic number, because the mean of its divisors is an integer number (1275875226).

Almost surely, 2^10206399858 is an apocalyptic number.

10206399858 is an abundant number, since it is smaller than the sum of its proper divisors (10207603758).

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

10206399858 is a wasteful number, since it uses less digits than its factorization.

10206399858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100329.

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 10206399858 in words is "ten billion, two hundred six million, three hundred ninety-nine thousand, eight hundred fifty-eight".