68399701441552 has 40 divisors (see below), whose sum is σ = 143507108490200. Its totient is φ = 31394678077440.

The previous prime is 68399701441523. The next prime is 68399701441607. The reversal of 68399701441552 is 25514410799386.

It can be written as a sum of positive squares in 4 ways, for example, as 8124415312896 + 60275286128656 = 2850336^2 + 7763716^2 .

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, 908373177 + ... + 908448472.

It is an arithmetic number, because the mean of its divisors is an integer number (3587677712255).

It is a 1-persistent number, because it is pandigital, but 2⋅68399701441552 = 136799402883104 is not.

Almost surely, 2^{68399701441552} is an apocalyptic number.

It is an amenable number.

68399701441552 is an abundant number, since it is smaller than the sum of its proper divisors (75107407048648).

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

68399701441552 is a wasteful number, since it uses less digits than its factorization.

68399701441552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816821851 (or 1816821845 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 68399701441552 in words is "sixty-eight trillion, three hundred ninety-nine billion, seven hundred one million, four hundred forty-one thousand, five hundred fifty-two".