669853750 has 40 divisors (see below), whose sum is σ = 1279390464. Its totient is φ = 262860000.

The previous prime is 669853747. The next prime is 669853763. The reversal of 669853750 is 57358966.

It is a junction number, because it is equal to n+sod(n) for n = 669853694 and 669853703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61195 + ... + 71305.

Almost surely, 2^669853750 is an apocalyptic number.

669853750 is a deficient number, since it is larger than the sum of its proper divisors (609536714).

669853750 is a wasteful number, since it uses less digits than its factorization.

669853750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10186 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 669853750 is about 25881.5329916912. The cubic root of 669853750 is about 874.9703391306.

The spelling of 669853750 in words is "six hundred sixty-nine million, eight hundred fifty-three thousand, seven hundred fifty".