68402077020486 has 128 divisors (see below), whose sum is σ = 168551422732800. Its totient is φ = 20386915920000.

The previous prime is 68402077020461. The next prime is 68402077020493.

It is a happy number.

68402077020486 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 774602536 + ... + 774690836.

It is an arithmetic number, because the mean of its divisors is an integer number (1316807990100).

Almost surely, 2^{68402077020486} is an apocalyptic number.

68402077020486 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68402077020486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84275711366400).

68402077020486 is an abundant number, since it is smaller than the sum of its proper divisors (100149345712314).

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

68402077020486 is a wasteful number, since it uses less digits than its factorization.

68402077020486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109763 (or 109757 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 68402077020486 in words is "sixty-eight trillion, four hundred two billion, seventy-seven million, twenty thousand, four hundred eighty-six".