7680990545 has 8 divisors (see below), whose sum is σ = 9218188800. Its totient is φ = 6144125680.

The previous prime is 7680990517. The next prime is 7680990563. The reversal of 7680990545 is 5450990867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7680990545 - 2²⁴ = 7664213329 is a prime.

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, 29495 + ... + 127404.

It is an arithmetic number, because the mean of its divisors is an integer number (1152273600).

Almost surely, 2^7680990545 is an apocalyptic number.

It is an amenable number.

7680990545 is a deficient number, since it is larger than the sum of its proper divisors (1537198255).

7680990545 is a wasteful number, since it uses less digits than its factorization.

7680990545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166695.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 7680990545 is about 87641.2605169506. The cubic root of 7680990545 is about 1973.0544785276.

The spelling of 7680990545 in words is "seven billion, six hundred eighty million, nine hundred ninety thousand, five hundred forty-five".