2669452478 has 48 divisors (see below), whose sum is σ = 5129080704. Its totient is φ = 1030281840.

The previous prime is 2669452459. The next prime is 2669452483. The reversal of 2669452478 is 8742549662.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103775 + ... + 126917.

It is an arithmetic number, because the mean of its divisors is an integer number (106855848).

Almost surely, 2^2669452478 is an apocalyptic number.

2669452478 is a deficient number, since it is larger than the sum of its proper divisors (2459628226).

2669452478 is a wasteful number, since it uses less digits than its factorization.

2669452478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23277 (or 23270 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The square root of 2669452478 is about 51666.7444106942. The cubic root of 2669452478 is about 1387.2052740666.

The spelling of 2669452478 in words is "two billion, six hundred sixty-nine million, four hundred fifty-two thousand, four hundred seventy-eight".