10206399867 has 16 divisors (see below), whose sum is σ = 14099170080. Its totient is φ = 6559660800.

The previous prime is 10206399857. The next prime is 10206399869. The reversal of 10206399867 is 76899360201.

10206399867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10206399867 - 2⁸ = 10206399611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10206399869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31234 + ... + 146247.

It is an arithmetic number, because the mean of its divisors is an integer number (881198130).

Almost surely, 2^10206399867 is an apocalyptic number.

10206399867 is a deficient number, since it is larger than the sum of its proper divisors (3892770213).

10206399867 is a wasteful number, since it uses less digits than its factorization.

10206399867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178174.

The product of its (nonzero) digits is 979776, while the sum is 51.

It can be divided in two parts, 102063 and 99867, that added together give a triangular number (201930 = T₆₃₅).

The spelling of 10206399867 in words is "ten billion, two hundred six million, three hundred ninety-nine thousand, eight hundred sixty-seven".