10287785640 has 64 divisors (see below), whose sum is σ = 33669120960. Its totient is φ = 2494008320.

The previous prime is 10287785593. The next prime is 10287785659. The reversal of 10287785640 is 4658778201.

It is a self number, because there is not a number n which added to its sum of digits gives 10287785640.

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, 3895569 + ... + 3898208.

It is an arithmetic number, because the mean of its divisors is an integer number (526080015).

Almost surely, 2^10287785640 is an apocalyptic number.

10287785640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10287785640 is an abundant number, since it is smaller than the sum of its proper divisors (23381335320).

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

10287785640 is a wasteful number, since it uses less digits than its factorization.

10287785640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7793802 (or 7793798 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 10287785640 in words is "ten billion, two hundred eighty-seven million, seven hundred eighty-five thousand, six hundred forty".