10642443782849 has 4 divisors (see below), whose sum is σ = 10663771326000. Its totient is φ = 10621116239700.

The previous prime is 10642443782837. The next prime is 10642443782879. The reversal of 10642443782849 is 94828734424601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10642443782849 - 2²⁴ = 10642427005633 is a prime.

It is a super-2 number, since 2×10642443782849² (a number of 27 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 = 10642443782791 and 10642443782800.

It is not an unprimeable number, because it can be changed into a prime (10642443782809) 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, 10663770827 + ... + 10663771824.

It is an arithmetic number, because the mean of its divisors is an integer number (2665942831500).

Almost surely, 2^{10642443782849} is an apocalyptic number.

It is an amenable number.

10642443782849 is a deficient number, since it is larger than the sum of its proper divisors (21327543151).

10642443782849 is an equidigital number, since it uses as much as digits as its factorization.

10642443782849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21327543150.

The product of its (nonzero) digits is 74317824, while the sum is 62.

The spelling of 10642443782849 in words is "ten trillion, six hundred forty-two billion, four hundred forty-three million, seven hundred eighty-two thousand, eight hundred forty-nine".