68204926144 has 56 divisors (see below), whose sum is σ = 139447572768. Its totient is φ = 33078159360.

The previous prime is 68204926093. The next prime is 68204926157. The reversal of 68204926144 is 44162940286.

It is a junction number, because it is equal to n+sod(n) for n = 68204926094 and 68204926103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378829 + ... + 529075.

It is an arithmetic number, because the mean of its divisors is an integer number (2490135228).

Almost surely, 2^68204926144 is an apocalyptic number.

68204926144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68204926144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69723786384).

68204926144 is an abundant number, since it is smaller than the sum of its proper divisors (71242646624).

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

68204926144 is a wasteful number, since it uses less digits than its factorization.

68204926144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150473 (or 150463 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 68204926144 in words is "sixty-eight billion, two hundred four million, nine hundred twenty-six thousand, one hundred forty-four".