68927388489 has 24 divisors (see below), whose sum is σ = 101944082240. Its totient is φ = 44853473952.

The previous prime is 68927388487. The next prime is 68927388499. The reversal of 68927388489 is 98488372986.

68927388489 is a `hidden beast` number, since 68 + 9 + 2 + 7 + 3 + 88 + 489 = 666.

It is not a de Polignac number, because 68927388489 - 2¹ = 68927388487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68927388487) 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, 539427 + ... + 654855.

Almost surely, 2^68927388489 is an apocalyptic number.

It is an amenable number.

68927388489 is a deficient number, since it is larger than the sum of its proper divisors (33016693751).

68927388489 is a wasteful number, since it uses less digits than its factorization.

68927388489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117021 (or 117018 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The spelling of 68927388489 in words is "sixty-eight billion, nine hundred twenty-seven million, three hundred eighty-eight thousand, four hundred eighty-nine".