10503683640 has 64 divisors (see below), whose sum is σ = 35012282400. Its totient is φ = 2800982016.

The previous prime is 10503683639. The next prime is 10503683719. The reversal of 10503683640 is 4638630501.

10503683640 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 3 + 6 + 8 + 3 + 640 = 666.

It is a super-2 number, since 2×10503683640² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10503683595 and 10503683604.

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, 4861737 + ... + 4863896.

Almost surely, 2^10503683640 is an apocalyptic number.

10503683640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10503683640 is an abundant number, since it is smaller than the sum of its proper divisors (24508598760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10503683640 is a wasteful number, since it uses less digits than its factorization.

10503683640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725653 (or 9725643 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 10503683640 in words is "ten billion, five hundred three million, six hundred eighty-three thousand, six hundred forty".