68819317015680 has 1152 divisors, whose sum is σ = 299779254028800. Its totient is φ = 14240043417600.

The previous prime is 68819317015643. The next prime is 68819317015783. The reversal of 68819317015680 is 8651071391886.

68819317015680 is a `hidden beast` number, since 6 + 88 + 19 + 317 + 0 + 156 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1165984570 + ... + 1166043590.

It is an arithmetic number, because the mean of its divisors is an integer number (260225046900).

Almost surely, 2^{68819317015680} is an apocalyptic number.

68819317015680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68819317015680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149889627014400).

68819317015680 is an abundant number, since it is smaller than the sum of its proper divisors (230959937013120).

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

68819317015680 is a wasteful number, since it uses less digits than its factorization.

68819317015680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59314 (or 59288 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 63.

The spelling of 68819317015680 in words is "sixty-eight trillion, eight hundred nineteen billion, three hundred seventeen million, fifteen thousand, six hundred eighty".