68861254349 has 8 divisors (see below), whose sum is σ = 70544735352. Its totient is φ = 67177960960.

The previous prime is 68861254333. The next prime is 68861254367. The reversal of 68861254349 is 94345216886.

It can be written as a sum of positive squares in 4 ways, for example, as 16124428324 + 52736826025 = 126982^2 + 229645^2 .

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 68861254349 - 2⁴ = 68861254333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68861254294 and 68861254303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68861254369) 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, 953807 + ... + 1023459.

It is an arithmetic number, because the mean of its divisors is an integer number (8818091919).

Almost surely, 2^68861254349 is an apocalyptic number.

It is an amenable number.

68861254349 is a deficient number, since it is larger than the sum of its proper divisors (1683481003).

68861254349 is a wasteful number, since it uses less digits than its factorization.

68861254349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93807.

The product of its digits is 9953280, while the sum is 56.

The spelling of 68861254349 in words is "sixty-eight billion, eight hundred sixty-one million, two hundred fifty-four thousand, three hundred forty-nine".