7878266601 has 8 divisors (see below), whose sum is σ = 10573921344. Its totient is φ = 5217394800.

The previous prime is 7878266587. The next prime is 7878266611. The reversal of 7878266601 is 1066628787.

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

It is not a de Polignac number, because 7878266601 - 2⁵ = 7878266569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7878266611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8695206 + ... + 8696111.

It is an arithmetic number, because the mean of its divisors is an integer number (1321740168).

Almost surely, 2^7878266601 is an apocalyptic number.

It is an amenable number.

7878266601 is a deficient number, since it is larger than the sum of its proper divisors (2695654743).

7878266601 is a wasteful number, since it uses less digits than its factorization.

7878266601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17391471.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 7878266601 is about 88759.6000497974. The cubic root of 7878266601 is about 1989.8036557038.

The spelling of 7878266601 in words is "seven billion, eight hundred seventy-eight million, two hundred sixty-six thousand, six hundred one".