2478136678 has 16 divisors (see below), whose sum is σ = 3827222784. Its totient is φ = 1202703040.

The previous prime is 2478136673. The next prime is 2478136709. The reversal of 2478136678 is 8766318742.

It is a super-2 number, since 2×2478136678² = 12282322789697751368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478136673) 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, 60550 + ... + 92857.

It is an arithmetic number, because the mean of its divisors is an integer number (239201424).

Almost surely, 2^2478136678 is an apocalyptic number.

2478136678 is a deficient number, since it is larger than the sum of its proper divisors (1349086106).

2478136678 is a wasteful number, since it uses less digits than its factorization.

2478136678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153647.

The product of its digits is 2709504, while the sum is 52.

The square root of 2478136678 is about 49780.8866735015. The cubic root of 2478136678 is about 1353.2408061314.

The spelling of 2478136678 in words is "two billion, four hundred seventy-eight million, one hundred thirty-six thousand, six hundred seventy-eight".