10642443782879 has 2 divisors, whose sum is σ = 10642443782880. Its totient is φ = 10642443782878.

The previous prime is 10642443782837. The next prime is 10642443782891. The reversal of 10642443782879 is 97828734424601.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10642443782879 is a prime.

It is a super-2 number, since 2×10642443782879² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10642443782809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321221891439 + 5321221891440.

It is an arithmetic number, because the mean of its divisors is an integer number (5321221891440).

Almost surely, 2^{10642443782879} is an apocalyptic number.

10642443782879 is a deficient number, since it is larger than the sum of its proper divisors (1).

10642443782879 is an equidigital number, since it uses as much as digits as its factorization.

10642443782879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130056192, while the sum is 65.

The spelling of 10642443782879 in words is "ten trillion, six hundred forty-two billion, four hundred forty-three million, seven hundred eighty-two thousand, eight hundred seventy-nine".