68146673340740 has 24 divisors (see below), whose sum is σ = 143964948238272. Its totient is φ = 27095443770080.

The previous prime is 68146673340731. The next prime is 68146673340749. The reversal of 68146673340740 is 4704337664186.

It is an interprime number because it is at equal distance from previous prime (68146673340731) and next prime (68146673340749).

It is a self number, because there is not a number n which added to its sum of digits gives 68146673340740.

It is not an unprimeable number, because it can be changed into a prime (68146673340749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10201594466 + ... + 10201601145.

It is an arithmetic number, because the mean of its divisors is an integer number (5998539509928).

Almost surely, 2^{68146673340740} is an apocalyptic number.

It is an amenable number.

68146673340740 is an abundant number, since it is smaller than the sum of its proper divisors (75818274897532).

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

68146673340740 is a wasteful number, since it uses less digits than its factorization.

68146673340740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20403195787 (or 20403195785 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 59.

The spelling of 68146673340740 in words is "sixty-eight trillion, one hundred forty-six billion, six hundred seventy-three million, three hundred forty thousand, seven hundred forty".