7869666454 has 16 divisors (see below), whose sum is σ = 12843599328. Its totient is φ = 3594707712.

The previous prime is 7869666439. The next prime is 7869666481. The reversal of 7869666454 is 4546669687.

It is a junction number, because it is equal to n+sod(n) for n = 7869666392 and 7869666401.

It is a congruent number.

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, 1557682 + ... + 1562725.

It is an arithmetic number, because the mean of its divisors is an integer number (802724958).

Almost surely, 2^7869666454 is an apocalyptic number.

7869666454 is a deficient number, since it is larger than the sum of its proper divisors (4973932874).

7869666454 is a wasteful number, since it uses less digits than its factorization.

7869666454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120519.

The product of its digits is 52254720, while the sum is 61.

The square root of 7869666454 is about 88711.1405292481. The cubic root of 7869666454 is about 1989.0793493955.

The spelling of 7869666454 in words is "seven billion, eight hundred sixty-nine million, six hundred sixty-six thousand, four hundred fifty-four".