10642043617 has 2 divisors, whose sum is σ = 10642043618. Its totient is φ = 10642043616.

The previous prime is 10642043603. The next prime is 10642043647. The reversal of 10642043617 is 71634024601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8984006656 + 1658036961 = 94784^2 + 40719^2 .

It is a cyclic number.

It is not a de Polignac number, because 10642043617 - 2¹⁵ = 10642010849 is a prime.

It is a super-2 number, since 2×10642043617² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10642043647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321021808 + 5321021809.

It is an arithmetic number, because the mean of its divisors is an integer number (5321021809).

Almost surely, 2^10642043617 is an apocalyptic number.

It is an amenable number.

10642043617 is a deficient number, since it is larger than the sum of its proper divisors (1).

10642043617 is an equidigital number, since it uses as much as digits as its factorization.

10642043617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 10642043617 in words is "ten billion, six hundred forty-two million, forty-three thousand, six hundred seventeen".