7878043059 has 8 divisors (see below), whose sum is σ = 10521954240. Its totient is φ = 5243080296.

The previous prime is 7878043057. The next prime is 7878043081. The reversal of 7878043059 is 9503408787.

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

It is not a de Polignac number, because 7878043059 - 2¹ = 7878043057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7878043057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235049 + ... + 2238570.

It is an arithmetic number, because the mean of its divisors is an integer number (1315244280).

Almost surely, 2^7878043059 is an apocalyptic number.

7878043059 is a deficient number, since it is larger than the sum of its proper divisors (2643911181).

7878043059 is a wasteful number, since it uses less digits than its factorization.

7878043059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474209.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 7878043059 is about 88758.3407855284. The cubic root of 7878043059 is about 1989.7848356207.

The spelling of 7878043059 in words is "seven billion, eight hundred seventy-eight million, forty-three thousand, fifty-nine".