68071441373440 has 36 divisors (see below), whose sum is σ = 163052374417884. Its totient is φ = 27228576548864.

The previous prime is 68071441373339. The next prime is 68071441373443. The reversal of 68071441373440 is 4437314417086.

It can be written as a sum of positive squares in 2 ways, for example, as 26964673333504 + 41106768039936 = 5192752^2 + 6411456^2 .

It is a super-2 number, since 2×68071441373440² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68071441373443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26590405507 + ... + 26590408066.

It is an arithmetic number, because the mean of its divisors is an integer number (4529232622719).

Almost surely, 2^{68071441373440} is an apocalyptic number.

It is an amenable number.

68071441373440 is an abundant number, since it is smaller than the sum of its proper divisors (94980933044444).

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

68071441373440 is an equidigital number, since it uses as much as digits as its factorization.

68071441373440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53180813594 (or 53180813580 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 52.

The spelling of 68071441373440 in words is "sixty-eight trillion, seventy-one billion, four hundred forty-one million, three hundred seventy-three thousand, four hundred forty".