68776925154 has 64 divisors (see below), whose sum is σ = 166138076160. Its totient is φ = 18542088000.

The previous prime is 68776925137. The next prime is 68776925171. The reversal of 68776925154 is 45152967786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68776925137) and next prime (68776925171).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28612 + ... + 371984.

It is an arithmetic number, because the mean of its divisors is an integer number (2595907440).

Almost surely, 2^68776925154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68776925154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83069038080).

68776925154 is an abundant number, since it is smaller than the sum of its proper divisors (97361151006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68776925154 is a wasteful number, since it uses less digits than its factorization.

68776925154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343655.

The product of its digits is 25401600, while the sum is 60.

The spelling of 68776925154 in words is "sixty-eight billion, seven hundred seventy-six million, nine hundred twenty-five thousand, one hundred fifty-four".