1668793459248 has 60 divisors (see below), whose sum is σ = 4685225142520. Its totient is φ = 554487268608.

The previous prime is 1668793459241. The next prime is 1668793459301. The reversal of 1668793459248 is 8429543978661.

1668793459248 is a `hidden beast` number, since 1 + 6 + 6 + 87 + 93 + 459 + 2 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (1668793459241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18467458 + ... + 18557601.

Almost surely, 2^{1668793459248} is an apocalyptic number.

1668793459248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1668793459248 is an abundant number, since it is smaller than the sum of its proper divisors (3016431683272).

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

1668793459248 is a wasteful number, since it uses less digits than its factorization.

1668793459248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37025386 (or 37025377 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 1668793459248 in words is "one trillion, six hundred sixty-eight billion, seven hundred ninety-three million, four hundred fifty-nine thousand, two hundred forty-eight".