10003644634 has 16 divisors (see below), whose sum is σ = 15568160256. Its totient is φ = 4815896400.

The previous prime is 10003644619. The next prime is 10003644661. The reversal of 10003644634 is 43644630001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 10003644596 and 10003644605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397302 + ... + 421729.

It is an arithmetic number, because the mean of its divisors is an integer number (973010016).

Almost surely, 2^10003644634 is an apocalyptic number.

10003644634 is a deficient number, since it is larger than the sum of its proper divisors (5564515622).

10003644634 is a wasteful number, since it uses less digits than its factorization.

10003644634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819261.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 10003644634 in words is "ten billion, three million, six hundred forty-four thousand, six hundred thirty-four".