68426792280 has 1536 divisors, whose sum is σ = 313786368000. Its totient is φ = 12933043200.

The previous prime is 68426792279. The next prime is 68426792339. The reversal of 68426792280 is 8229762486.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 538793577 + ... + 538793703.

It is an arithmetic number, because the mean of its divisors is an integer number (204288000).

Almost surely, 2^68426792280 is an apocalyptic number.

68426792280 is a gapful number since it is divisible by the number (60) 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 68426792280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156893184000).

68426792280 is an abundant number, since it is smaller than the sum of its proper divisors (245359575720).

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

68426792280 is a wasteful number, since it uses less digits than its factorization.

68426792280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 68426792280 in words is "sixty-eight billion, four hundred twenty-six million, seven hundred ninety-two thousand, two hundred eighty".