4490642098069 has 4 divisors (see below), whose sum is σ = 4493221446220. Its totient is φ = 4488062749920.

The previous prime is 4490642098057. The next prime is 4490642098127. The reversal of 4490642098069 is 9608902460944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31555259044 + 4459086839025 = 177638^2 + 2111655^2 .

It is a cyclic number.

It is not a de Polignac number, because 4490642098069 - 2¹³ = 4490642089877 is a prime.

It is a super-2 number, since 2×4490642098069² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4490642097998 and 4490642098016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490642096069) 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, 1289671464 + ... + 1289674945.

It is an arithmetic number, because the mean of its divisors is an integer number (1123305361555).

Almost surely, 2^{4490642098069} is an apocalyptic number.

It is an amenable number.

4490642098069 is a deficient number, since it is larger than the sum of its proper divisors (2579348151).

4490642098069 is a wasteful number, since it uses less digits than its factorization.

4490642098069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579348150.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 4490642098069 in words is "four trillion, four hundred ninety billion, six hundred forty-two million, ninety-eight thousand, sixty-nine".