1113777678 has 48 divisors (see below), whose sum is σ = 2548370160. Its totient is φ = 322535424.

The previous prime is 1113777667. The next prime is 1113777697. The reversal of 1113777678 is 8767773111.

It is a super-2 number, since 2×1113777678² = 2481001432022143368, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2163 + ... + 47246.

It is an arithmetic number, because the mean of its divisors is an integer number (53091045).

Almost surely, 2^1113777678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113777678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1274185080).

1113777678 is an abundant number, since it is smaller than the sum of its proper divisors (1434592482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113777678 is a wasteful number, since it uses less digits than its factorization.

1113777678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49461 (or 49444 counting only the distinct ones).

The product of its digits is 345744, while the sum is 48.

The square root of 1113777678 is about 33373.3078672163. The cubic root of 1113777678 is about 1036.5720710386.

The spelling of 1113777678 in words is "one billion, one hundred thirteen million, seven hundred seventy-seven thousand, six hundred seventy-eight".