68680432355 has 8 divisors (see below), whose sum is σ = 82421658000. Its totient is φ = 54940919776.

The previous prime is 68680432313. The next prime is 68680432367. The reversal of 68680432355 is 55323408686.

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

It is a cyclic number.

It is not a de Polignac number, because 68680432355 - 2¹² = 68680428259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338345 + ... + 501834.

It is an arithmetic number, because the mean of its divisors is an integer number (10302707250).

Almost surely, 2^68680432355 is an apocalyptic number.

68680432355 is a deficient number, since it is larger than the sum of its proper divisors (13741225645).

68680432355 is a wasteful number, since it uses less digits than its factorization.

68680432355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856533.

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 68680432355 in words is "sixty-eight billion, six hundred eighty million, four hundred thirty-two thousand, three hundred fifty-five".