68854417547 has 8 divisors (see below), whose sum is σ = 72753922560. Its totient is φ = 64982471400.

The previous prime is 68854417543. The next prime is 68854417553. The reversal of 68854417547 is 74571445886.

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 68854417547 - 2² = 68854417543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68854417543) 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, 6884579 + ... + 6894572.

It is an arithmetic number, because the mean of its divisors is an integer number (9094240320).

Almost surely, 2^68854417547 is an apocalyptic number.

68854417547 is a deficient number, since it is larger than the sum of its proper divisors (3899505013).

68854417547 is a wasteful number, since it uses less digits than its factorization.

68854417547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13779433.

The product of its digits is 30105600, while the sum is 59.

The spelling of 68854417547 in words is "sixty-eight billion, eight hundred fifty-four million, four hundred seventeen thousand, five hundred forty-seven".