3668881878078 has 32 divisors (see below), whose sum is σ = 7395190979616. Its totient is φ = 1213398763008.

The previous prime is 3668881878029. The next prime is 3668881878097. The reversal of 3668881878078 is 8708781888663.

It is a junction number, because it is equal to n+sod(n) for n = 3668881877994 and 3668881878012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405900 + ... + 2739072.

It is an arithmetic number, because the mean of its divisors is an integer number (231099718113).

Almost surely, 2^{3668881878078} is an apocalyptic number.

3668881878078 is an abundant number, since it is smaller than the sum of its proper divisors (3726309101538).

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

3668881878078 is a wasteful number, since it uses less digits than its factorization.

3668881878078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335228.

The product of its (nonzero) digits is 1387266048, while the sum is 78.

The spelling of 3668881878078 in words is "three trillion, six hundred sixty-eight billion, eight hundred eighty-one million, eight hundred seventy-eight thousand, seventy-eight".