678108189132 has 48 divisors (see below), whose sum is σ = 1917881750400. Its totient is φ = 205487329680.

The previous prime is 678108189131. The next prime is 678108189133. The reversal of 678108189132 is 231981801876.

It is an interprime number because it is at equal distance from previous prime (678108189131) and next prime (678108189133).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (678108189131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285397882 + ... + 285400257.

It is an arithmetic number, because the mean of its divisors is an integer number (39955869800).

Almost surely, 2^678108189132 is an apocalyptic number.

It is an amenable number.

678108189132 is an abundant number, since it is smaller than the sum of its proper divisors (1239773561268).

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

678108189132 is a wasteful number, since it uses less digits than its factorization.

678108189132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570798163 (or 570798155 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 678108189132 in words is "six hundred seventy-eight billion, one hundred eight million, one hundred eighty-nine thousand, one hundred thirty-two".