68377470784 has 112 divisors (see below), whose sum is σ = 162698761216. Its totient is φ = 27894067200.

The previous prime is 68377470779. The next prime is 68377470817. The reversal of 68377470784 is 48707477386.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806812 + ... + 887524.

Almost surely, 2^68377470784 is an apocalyptic number.

68377470784 is a gapful number since it is divisible by the number (64) 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 68377470784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81349380608).

68377470784 is an abundant number, since it is smaller than the sum of its proper divisors (94321290432).

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

68377470784 is a wasteful number, since it uses less digits than its factorization.

68377470784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80824 (or 80814 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 61.

The spelling of 68377470784 in words is "sixty-eight billion, three hundred seventy-seven million, four hundred seventy thousand, seven hundred eighty-four".