28201132545 has 16 divisors (see below), whose sum is σ = 45265978752. Its totient is φ = 14992548480.

The previous prime is 28201132457. The next prime is 28201132607. The reversal of 28201132545 is 54523110282.

It is not a de Polignac number, because 28201132545 - 2⁷ = 28201132417 is a prime.

It is a super-3 number, since 3×28201132545³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2998621 + ... + 3008010.

It is an arithmetic number, because the mean of its divisors is an integer number (2829123672).

Almost surely, 2^28201132545 is an apocalyptic number.

It is an amenable number.

28201132545 is a deficient number, since it is larger than the sum of its proper divisors (17064846207).

28201132545 is a wasteful number, since it uses less digits than its factorization.

28201132545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006952.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 28201132545 in words is "twenty-eight billion, two hundred one million, one hundred thirty-two thousand, five hundred forty-five".