68177945486431 has 8 divisors (see below), whose sum is σ = 75272036200704. Its totient is φ = 61233204050520.

The previous prime is 68177945486429. The next prime is 68177945486489. The reversal of 68177945486431 is 13468454977186.

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 68177945486431 - 2¹ = 68177945486429 is a prime.

It is a super-2 number, since 2×68177945486431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68177945486491) 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, 37337318631 + ... + 37337320456.

It is an arithmetic number, because the mean of its divisors is an integer number (9409004525088).

Almost surely, 2^{68177945486431} is an apocalyptic number.

68177945486431 is a deficient number, since it is larger than the sum of its proper divisors (7094090714273).

68177945486431 is a wasteful number, since it uses less digits than its factorization.

68177945486431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74674639181.

The product of its digits is 975421440, while the sum is 73.

The spelling of 68177945486431 in words is "sixty-eight trillion, one hundred seventy-seven billion, nine hundred forty-five million, four hundred eighty-six thousand, four hundred thirty-one".