28032536909953 has 8 divisors (see below), whose sum is σ = 29682123832872. Its totient is φ = 26383018227456.

The previous prime is 28032536909879. The next prime is 28032536910013. The reversal of 28032536909953 is 35990963523082.

It can be written as a sum of positive squares in 4 ways, for example, as 13950770315329 + 14081766594624 = 3735073^2 + 3752568^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28032536909953 - 2²¹ = 28032534812801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28032536909353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16213150 + ... + 17858647.

It is an arithmetic number, because the mean of its divisors is an integer number (3710265479109).

Almost surely, 2^{28032536909953} is an apocalyptic number.

It is an amenable number.

28032536909953 is a deficient number, since it is larger than the sum of its proper divisors (1649586922919).

28032536909953 is a wasteful number, since it uses less digits than its factorization.

28032536909953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34120211.

The product of its (nonzero) digits is 94478400, while the sum is 64.

The spelling of 28032536909953 in words is "twenty-eight trillion, thirty-two billion, five hundred thirty-six million, nine hundred nine thousand, nine hundred fifty-three".