7878954671 has 8 divisors (see below), whose sum is σ = 9005333280. Its totient is φ = 6752779488.

The previous prime is 7878954659. The next prime is 7878954679. The reversal of 7878954671 is 1764598787.

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

It is not a de Polignac number, because 7878954671 - 2²² = 7874760367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878954679) 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, 43925 + ... + 132993.

It is an arithmetic number, because the mean of its divisors is an integer number (1125666660).

Almost surely, 2^7878954671 is an apocalyptic number.

7878954671 is a deficient number, since it is larger than the sum of its proper divisors (1126378609).

7878954671 is a wasteful number, since it uses less digits than its factorization.

7878954671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101713.

The product of its digits is 23708160, while the sum is 62.

The square root of 7878954671 is about 88763.4759966057. The cubic root of 7878954671 is about 1989.8615823355.

The spelling of 7878954671 in words is "seven billion, eight hundred seventy-eight million, nine hundred fifty-four thousand, six hundred seventy-one".