68380501680 has 60 divisors (see below), whose sum is σ = 229644520560. Its totient is φ = 18234800256.

The previous prime is 68380501643. The next prime is 68380501723. The reversal of 68380501680 is 8610508386.

68380501680 is a `hidden beast` number, since 6 + 8 + 3 + 80 + 501 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47485740 + ... + 47487179.

It is an arithmetic number, because the mean of its divisors is an integer number (3827408676).

Almost surely, 2^68380501680 is an apocalyptic number.

68380501680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68380501680 is an abundant number, since it is smaller than the sum of its proper divisors (161264018880).

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

68380501680 is a wasteful number, since it uses less digits than its factorization.

68380501680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94972938 (or 94972929 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 68380501680 in words is "sixty-eight billion, three hundred eighty million, five hundred one thousand, six hundred eighty".