68357678580 has 36 divisors (see below), whose sum is σ = 207351625572. Its totient is φ = 18228714240.

The previous prime is 68357678579. The next prime is 68357678581. The reversal of 68357678580 is 8587675386.

68357678580 is a `hidden beast` number, since 6 + 8 + 3 + 576 + 7 + 8 + 58 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (68357678579) and next prime (68357678581).

It can be written as a sum of positive squares in 2 ways, for example, as 32350339044 + 36007339536 = 179862^2 + 189756^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68357678581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189882261 + ... + 189882620.

It is an arithmetic number, because the mean of its divisors is an integer number (5759767377).

Almost surely, 2^68357678580 is an apocalyptic number.

68357678580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68357678580 is an abundant number, since it is smaller than the sum of its proper divisors (138993946992).

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

68357678580 is a wasteful number, since it uses less digits than its factorization.

68357678580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379764896 (or 379764891 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 68357678580 in words is "sixty-eight billion, three hundred fifty-seven million, six hundred seventy-eight thousand, five hundred eighty".