3912562878 has 48 divisors (see below), whose sum is σ = 9581800320. Its totient is φ = 1059038064.

The previous prime is 3912562837. The next prime is 3912562889. The reversal of 3912562878 is 8782652193.

It is a self number, because there is not a number n which added to its sum of digits gives 3912562878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344626 + ... + 355797.

It is an arithmetic number, because the mean of its divisors is an integer number (199620840).

Almost surely, 2^3912562878 is an apocalyptic number.

3912562878 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3912562878 is an abundant number, since it is smaller than the sum of its proper divisors (5669237442).

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

3912562878 is a wasteful number, since it uses less digits than its factorization.

3912562878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700461 (or 700454 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 3912562878 is about 62550.4826360277. The cubic root of 3912562878 is about 1575.7492533879.

The spelling of 3912562878 in words is "three billion, nine hundred twelve million, five hundred sixty-two thousand, eight hundred seventy-eight".