28107523001 has 2 divisors, whose sum is σ = 28107523002. Its totient is φ = 28107523000.

The previous prime is 28107522979. The next prime is 28107523043. The reversal of 28107523001 is 10032570182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16364549776 + 11742973225 = 127924^2 + 108365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28107523001 is a prime.

It is not a weakly prime, because it can be changed into another prime (28107523501) 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 as a sum of consecutive naturals, namely, 14053761500 + 14053761501.

It is an arithmetic number, because the mean of its divisors is an integer number (14053761501).

Almost surely, 2^28107523001 is an apocalyptic number.

It is an amenable number.

28107523001 is a deficient number, since it is larger than the sum of its proper divisors (1).

28107523001 is an equidigital number, since it uses as much as digits as its factorization.

28107523001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 28107523001 in words is "twenty-eight billion, one hundred seven million, five hundred twenty-three thousand, one".