10003776645 has 16 divisors (see below), whose sum is σ = 16007323392. Its totient is φ = 5334920640.

The previous prime is 10003776623. The next prime is 10003776677. The reversal of 10003776645 is 54667730001.

It is not a de Polignac number, because 10003776645 - 2¹² = 10003772549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282900 + ... + 316290.

It is an arithmetic number, because the mean of its divisors is an integer number (1000457712).

Almost surely, 2^10003776645 is an apocalyptic number.

10003776645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10003776645 is a deficient number, since it is larger than the sum of its proper divisors (6003546747).

10003776645 is a wasteful number, since it uses less digits than its factorization.

10003776645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53372.

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 10003776645 in words is "ten billion, three million, seven hundred seventy-six thousand, six hundred forty-five".