10206442819 has 4 divisors (see below), whose sum is σ = 10743624040. Its totient is φ = 9669261600.

The previous prime is 10206442817. The next prime is 10206442843. The reversal of 10206442819 is 91824460201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91824460201 = 43801 ⋅2096401.

It is a cyclic number.

It is not a de Polignac number, because 10206442819 - 2¹ = 10206442817 is a prime.

It is a super-2 number, since 2×10206442819² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10206442817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268590582 + ... + 268590619.

It is an arithmetic number, because the mean of its divisors is an integer number (2685906010).

Almost surely, 2^10206442819 is an apocalyptic number.

10206442819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

10206442819 is a deficient number, since it is larger than the sum of its proper divisors (537181221).

10206442819 is an equidigital number, since it uses as much as digits as its factorization.

10206442819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537181220.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 10206442819 in words is "ten billion, two hundred six million, four hundred forty-two thousand, eight hundred nineteen".