68615770779360 has 1152 divisors, whose sum is σ = 288116779991040. Its totient is φ = 15197992685568.

The previous prime is 68615770779337. The next prime is 68615770779373. The reversal of 68615770779360 is 6397707751686.

68615770779360 is a `hidden beast` number, since 6 + 86 + 1 + 57 + 70 + 7 + 79 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1155954802 + ... + 1156014158.

It is an arithmetic number, because the mean of its divisors is an integer number (250101371520).

Almost surely, 2^{68615770779360} is an apocalyptic number.

68615770779360 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 68615770779360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144058389995520).

68615770779360 is an abundant number, since it is smaller than the sum of its proper divisors (219501009211680).

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

68615770779360 is a wasteful number, since it uses less digits than its factorization.

68615770779360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59565 (or 59544 counting only the distinct ones).

The product of its (nonzero) digits is 560105280, while the sum is 72.

The spelling of 68615770779360 in words is "sixty-eight trillion, six hundred fifteen billion, seven hundred seventy million, seven hundred seventy-nine thousand, three hundred sixty".