68148043400 has 96 divisors (see below), whose sum is σ = 162780597000. Its totient is φ = 26517043200.

The previous prime is 68148043373. The next prime is 68148043427. The reversal of 68148043400 is 434084186.

It is an interprime number because it is at equal distance from previous prime (68148043373) and next prime (68148043427).

It can be written as a sum of positive squares in 12 ways, for example, as 650964196 + 67497079204 = 25514^2 + 259802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2849894 + ... + 2873706.

Almost surely, 2^68148043400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68148043400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81390298500).

68148043400 is an abundant number, since it is smaller than the sum of its proper divisors (94632553600).

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

68148043400 is a wasteful number, since it uses less digits than its factorization.

68148043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219 (or 24210 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 68148043400 in words is "sixty-eight billion, one hundred forty-eight million, forty-three thousand, four hundred".