68154671 has 4 divisors (see below), whose sum is σ = 73397352. Its totient is φ = 62911992.

The previous prime is 68154659. The next prime is 68154673. The reversal of 68154671 is 17645186.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68154671 - 2¹⁰ = 68153647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68154673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2621321 + ... + 2621346.

It is an arithmetic number, because the mean of its divisors is an integer number (18349338).

Almost surely, 2^68154671 is an apocalyptic number.

68154671 is a deficient number, since it is larger than the sum of its proper divisors (5242681).

68154671 is a wasteful number, since it uses less digits than its factorization.

68154671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242680.

The product of its digits is 40320, while the sum is 38.

The square root of 68154671 is about 8255.5842312946. The cubic root of 68154671 is about 408.4747433406.

The spelling of 68154671 in words is "sixty-eight million, one hundred fifty-four thousand, six hundred seventy-one".