68673473540 has 72 divisors (see below), whose sum is σ = 173171158272. Its totient is φ = 22785658560.

The previous prime is 68673473483. The next prime is 68673473543. The reversal of 68673473540 is 4537437686.

It is not an unprimeable number, because it can be changed into a prime (68673473543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1099862 + ... + 1160621.

It is an arithmetic number, because the mean of its divisors is an integer number (2405154976).

Almost surely, 2^68673473540 is an apocalyptic number.

It is an amenable number.

68673473540 is an abundant number, since it is smaller than the sum of its proper divisors (104497684732).

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

68673473540 is a wasteful number, since it uses less digits than its factorization.

68673473540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260537 (or 2260528 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 68673473540 in words is "sixty-eight billion, six hundred seventy-three million, four hundred seventy-three thousand, five hundred forty".