68867220154 has 8 divisors (see below), whose sum is σ = 103459026420. Its totient is φ = 34380878016.

The previous prime is 68867220113. The next prime is 68867220181. The reversal of 68867220154 is 45102276886.

It can be written as a sum of positive squares in 2 ways, for example, as 52360880625 + 16506339529 = 228825^2 + 128477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 68867220098 and 68867220107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26364399 + ... + 26367010.

Almost surely, 2^68867220154 is an apocalyptic number.

68867220154 is a deficient number, since it is larger than the sum of its proper divisors (34591806266).

68867220154 is a wasteful number, since it uses less digits than its factorization.

68867220154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52732064.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 68867220154 in words is "sixty-eight billion, eight hundred sixty-seven million, two hundred twenty thousand, one hundred fifty-four".