28052798501 has 32 divisors (see below), whose sum is σ = 36696791040. Its totient is φ = 20823148224.

The previous prime is 28052798471. The next prime is 28052798519. The reversal of 28052798501 is 10589725082.

It is a cyclic number.

It is not a de Polignac number, because 28052798501 - 2⁶ = 28052798437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052798531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99326 + ... + 256848.

It is an arithmetic number, because the mean of its divisors is an integer number (1146774720).

Almost surely, 2^28052798501 is an apocalyptic number.

It is an amenable number.

28052798501 is a deficient number, since it is larger than the sum of its proper divisors (8643992539).

28052798501 is a wasteful number, since it uses less digits than its factorization.

28052798501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 28052798501 in words is "twenty-eight billion, fifty-two million, seven hundred ninety-eight thousand, five hundred one".