10643400043 has 16 divisors (see below), whose sum is σ = 11082419712. Its totient is φ = 10214280000.

The previous prime is 10643400037. The next prime is 10643400077. The reversal of 10643400043 is 34000434601.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10643400043 - 2⁵ = 10643400011 is a prime.

It is a super-2 number, since 2×10643400043² (a number of 21 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 = 10643399990 and 10643400017.

It is not an unprimeable number, because it can be changed into a prime (10643400643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629328 + ... + 646018.

It is an arithmetic number, because the mean of its divisors is an integer number (692651232).

Almost surely, 2^10643400043 is an apocalyptic number.

10643400043 is a deficient number, since it is larger than the sum of its proper divisors (439019669).

10643400043 is a wasteful number, since it uses less digits than its factorization.

10643400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16986.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 10643400043 its reverse (34000434601), we get a palindrome (44643834644).

The spelling of 10643400043 in words is "ten billion, six hundred forty-three million, four hundred thousand, forty-three".