7689134478 has 16 divisors (see below), whose sum is σ = 15380454096. Its totient is φ = 2562680640.

The previous prime is 7689134461. The next prime is 7689134489. The reversal of 7689134478 is 8744319867.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43383 + ... + 131378.

It is an arithmetic number, because the mean of its divisors is an integer number (961278381).

Almost surely, 2^7689134478 is an apocalyptic number.

7689134478 is an abundant number, since it is smaller than the sum of its proper divisors (7691319618).

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

7689134478 is a wasteful number, since it uses less digits than its factorization.

7689134478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182099.

The product of its digits is 8128512, while the sum is 57.

The square root of 7689134478 is about 87687.7099598342. The cubic root of 7689134478 is about 1973.7515564963.

The spelling of 7689134478 in words is "seven billion, six hundred eighty-nine million, one hundred thirty-four thousand, four hundred seventy-eight".