1768225636 has 12 divisors (see below), whose sum is σ = 3100055728. Its totient is φ = 882495432.

The previous prime is 1768225619. The next prime is 1768225687. The reversal of 1768225636 is 6365228671.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401886 + ... + 406261.

Almost surely, 2^1768225636 is an apocalyptic number.

It is an amenable number.

1768225636 is a deficient number, since it is larger than the sum of its proper divisors (1331830092).

1768225636 is a wasteful number, since it uses less digits than its factorization.

1768225636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808698 (or 808696 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 1768225636 is about 42050.2751001703. The cubic root of 1768225636 is about 1209.2401567779.

The spelling of 1768225636 in words is "one billion, seven hundred sixty-eight million, two hundred twenty-five thousand, six hundred thirty-six".