678089291040 has 216 divisors, whose sum is σ = 2691772590780. Its totient is φ = 154991821824.

The previous prime is 678089291039. The next prime is 678089291041. The reversal of 678089291040 is 40192980876.

It is an interprime number because it is at equal distance from previous prime (678089291039) and next prime (678089291041).

It can be written as a sum of positive squares in 2 ways, for example, as 657480965904 + 20608325136 = 810852^2 + 143556^2 .

It is not an unprimeable number, because it can be changed into a prime (678089291041) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4734495 + ... + 4875614.

Almost surely, 2^678089291040 is an apocalyptic number.

678089291040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678089291040 is an abundant number, since it is smaller than the sum of its proper divisors (2013683299740).

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

678089291040 is a wasteful number, since it uses less digits than its factorization.

678089291040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9610144 (or 9610126 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 678089291040 in words is "six hundred seventy-eight billion, eighty-nine million, two hundred ninety-one thousand, forty".