68037434244 has 120 divisors (see below), whose sum is σ = 193241525400. Its totient is φ = 20749188096.

The previous prime is 68037434243. The next prime is 68037434251. The reversal of 68037434244 is 44243473086.

68037434244 is a `hidden beast` number, since 6 + 8 + 0 + 374 + 34 + 244 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1039288644 + 66998145600 = 32238^2 + 258840^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68037434244.

It is not an unprimeable number, because it can be changed into a prime (68037434243) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 404482 + ... + 547430.

It is an arithmetic number, because the mean of its divisors is an integer number (1610346045).

Almost surely, 2^68037434244 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 68037434244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96620762700).

68037434244 is an abundant number, since it is smaller than the sum of its proper divisors (125204091156).

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

68037434244 is a wasteful number, since it uses less digits than its factorization.

68037434244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143091 (or 143080 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 45.

The spelling of 68037434244 in words is "sixty-eight billion, thirty-seven million, four hundred thirty-four thousand, two hundred forty-four".