28601571571600 has 30 divisors (see below), whose sum is σ = 68715275701730. Its totient is φ = 11440628628480.

The previous prime is 28601571571579. The next prime is 28601571571607. The reversal of 28601571571600 is 617517510682.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1039029571584 + 27562542000016 = 1019328^2 + 5250004^2 .

It is not an unprimeable number, because it can be changed into a prime (28601571571607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35751964065 + ... + 35751964864.

Almost surely, 2^{28601571571600} is an apocalyptic number.

28601571571600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28601571571600 is an abundant number, since it is smaller than the sum of its proper divisors (40113704130130).

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

28601571571600 is a wasteful number, since it uses less digits than its factorization.

28601571571600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71503928947 (or 71503928936 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 28601571571600 in words is "twenty-eight trillion, six hundred one billion, five hundred seventy-one million, five hundred seventy-one thousand, six hundred".