68460478542 has 24 divisors (see below), whose sum is σ = 148336534944. Its totient is φ = 22819313664.

The previous prime is 68460478531. The next prime is 68460478543. The reversal of 68460478542 is 24587406486.

It is a happy number.

68460478542 is a `hidden beast` number, since 68 + 4 + 60 + 478 + 54 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68460478543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602043 + ... + 706665.

It is an arithmetic number, because the mean of its divisors is an integer number (6180688956).

Almost surely, 2^68460478542 is an apocalyptic number.

68460478542 is an abundant number, since it is smaller than the sum of its proper divisors (79876056402).

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

68460478542 is a wasteful number, since it uses less digits than its factorization.

68460478542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140984 (or 140981 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 68460478542 in words is "sixty-eight billion, four hundred sixty million, four hundred seventy-eight thousand, five hundred forty-two".