7878606159 has 16 divisors (see below), whose sum is σ = 10541636352. Its totient is φ = 5234022528.

The previous prime is 7878606133. The next prime is 7878606161. The reversal of 7878606159 is 9516068787.

It is not a de Polignac number, because 7878606159 - 2⁷ = 7878606031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7878606099 and 7878606108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878606959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149607 + ... + 1156439.

It is an arithmetic number, because the mean of its divisors is an integer number (658852272).

Almost surely, 2^7878606159 is an apocalyptic number.

7878606159 is a deficient number, since it is larger than the sum of its proper divisors (2663030193).

7878606159 is a wasteful number, since it uses less digits than its factorization.

7878606159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 7878606159 is about 88761.5128250978. The cubic root of 7878606159 is about 1989.8322425354.

The spelling of 7878606159 in words is "seven billion, eight hundred seventy-eight million, six hundred six thousand, one hundred fifty-nine".