669419429875 has 16 divisors (see below), whose sum is σ = 954783370944. Its totient is φ = 459030465600.

The previous prime is 669419429801. The next prime is 669419429881. The reversal of 669419429875 is 578924914966.

It is a happy number.

It is not a de Polignac number, because 669419429875 - 2²⁷ = 669285212147 is a prime.

It is a Duffinian number.

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, 382524514 + ... + 382526263.

It is an arithmetic number, because the mean of its divisors is an integer number (59673960684).

Almost surely, 2^669419429875 is an apocalyptic number.

669419429875 is a deficient number, since it is larger than the sum of its proper divisors (285363941069).

669419429875 is an equidigital number, since it uses as much as digits as its factorization.

669419429875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765050799 (or 765050789 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 70.

The spelling of 669419429875 in words is "six hundred sixty-nine billion, four hundred nineteen million, four hundred twenty-nine thousand, eight hundred seventy-five".