423817978250 has 16 divisors (see below), whose sum is σ = 793387255752. Its totient is φ = 169527191200.

The previous prime is 423817978169. The next prime is 423817978351. The reversal of 423817978250 is 52879718324.

It can be written as a sum of positive squares in 4 ways, for example, as 191529644881 + 232288333369 = 437641^2 + 481963^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847635707 + ... + 847636206.

Almost surely, 2^423817978250 is an apocalyptic number.

423817978250 is a deficient number, since it is larger than the sum of its proper divisors (369569277502).

423817978250 is a wasteful number, since it uses less digits than its factorization.

423817978250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695271930 (or 1695271920 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 423817978250 in words is "four hundred twenty-three billion, eight hundred seventeen million, nine hundred seventy-eight thousand, two hundred fifty".