2478804669 has 36 divisors (see below), whose sum is σ = 3966796288. Its totient is φ = 1490393520.

The previous prime is 2478804649. The next prime is 2478804707. The reversal of 2478804669 is 9664088742.

It is not a de Polignac number, because 2478804669 - 2¹⁷ = 2478673597 is a prime.

It is a super-2 number, since 2×2478804669² = 12288945174112399122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478804649) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 129342 + ... + 147264.

Almost surely, 2^2478804669 is an apocalyptic number.

It is an amenable number.

2478804669 is a deficient number, since it is larger than the sum of its proper divisors (1487991619).

2478804669 is a wasteful number, since it uses less digits than its factorization.

2478804669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18078 (or 18064 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 2478804669 is about 49787.5955334258. The cubic root of 2478804669 is about 1353.3623855797.

The spelling of 2478804669 in words is "two billion, four hundred seventy-eight million, eight hundred four thousand, six hundred sixty-nine".