68709797355 has 16 divisors (see below), whose sum is σ = 111170910240. Its totient is φ = 36233480448.

The previous prime is 68709797341. The next prime is 68709797357. The reversal of 68709797355 is 55379790786.

It is not a de Polignac number, because 68709797355 - 2¹² = 68709793259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68709797357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25732672 + ... + 25735341.

It is an arithmetic number, because the mean of its divisors is an integer number (6948181890).

Almost surely, 2^68709797355 is an apocalyptic number.

68709797355 is a deficient number, since it is larger than the sum of its proper divisors (42461112885).

68709797355 is a wasteful number, since it uses less digits than its factorization.

68709797355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51468110.

The product of its (nonzero) digits is 100018800, while the sum is 66.

The spelling of 68709797355 in words is "sixty-eight billion, seven hundred nine million, seven hundred ninety-seven thousand, three hundred fifty-five".