68417017538738 has 8 divisors (see below), whose sum is σ = 111955119608880. Its totient is φ = 31098644335780.

The previous prime is 68417017538711. The next prime is 68417017538759. The reversal of 68417017538738 is 83783571071486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554932216768 + ... + 1554932216811.

It is an arithmetic number, because the mean of its divisors is an integer number (13994389951110).

Almost surely, 2^{68417017538738} is an apocalyptic number.

68417017538738 is a deficient number, since it is larger than the sum of its proper divisors (43538102070142).

68417017538738 is a wasteful number, since it uses less digits than its factorization.

68417017538738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109864433592.

The product of its (nonzero) digits is 189665280, while the sum is 68.

The spelling of 68417017538738 in words is "sixty-eight trillion, four hundred seventeen billion, seventeen million, five hundred thirty-eight thousand, seven hundred thirty-eight".