28988858953 has 2 divisors, whose sum is σ = 28988858954. Its totient is φ = 28988858952.

The previous prime is 28988858929. The next prime is 28988859047. The reversal of 28988858953 is 35985888982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27674651449 + 1314207504 = 166357^2 + 36252^2 .

It is a cyclic number.

It is not a de Polignac number, because 28988858953 - 2²¹ = 28986761801 is a prime.

It is not a weakly prime, because it can be changed into another prime (28988858053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14494429476 + 14494429477.

It is an arithmetic number, because the mean of its divisors is an integer number (14494429477).

Almost surely, 2^28988858953 is an apocalyptic number.

It is an amenable number.

28988858953 is a deficient number, since it is larger than the sum of its proper divisors (1).

28988858953 is an equidigital number, since it uses as much as digits as its factorization.

28988858953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 398131200, while the sum is 73.

The spelling of 28988858953 in words is "twenty-eight billion, nine hundred eighty-eight million, eight hundred fifty-eight thousand, nine hundred fifty-three".