7668238515 has 16 divisors (see below), whose sum is σ = 14021922048. Its totient is φ = 3505480416.

The previous prime is 7668238483. The next prime is 7668238531. The reversal of 7668238515 is 5158328667.

It is a happy number.

It is not a de Polignac number, because 7668238515 - 2⁵ = 7668238483 is a prime.

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, 36515317 + ... + 36515526.

It is an arithmetic number, because the mean of its divisors is an integer number (876370128).

Almost surely, 2^7668238515 is an apocalyptic number.

7668238515 is a deficient number, since it is larger than the sum of its proper divisors (6353683533).

7668238515 is a wasteful number, since it uses less digits than its factorization.

7668238515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73030858.

The product of its digits is 2419200, while the sum is 51.

The square root of 7668238515 is about 87568.4790035775. The cubic root of 7668238515 is about 1971.9619811273.

The spelling of 7668238515 in words is "seven billion, six hundred sixty-eight million, two hundred thirty-eight thousand, five hundred fifteen".