28653299871 has 16 divisors (see below), whose sum is σ = 43666560000. Its totient is φ = 16371668448.

The previous prime is 28653299863. The next prime is 28653299887. The reversal of 28653299871 is 17899235682.

It is not a de Polignac number, because 28653299871 - 2³ = 28653299863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28653299071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163605 + ... + 289953.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160000).

Almost surely, 2^28653299871 is an apocalyptic number.

28653299871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

28653299871 is a deficient number, since it is larger than the sum of its proper divisors (15013260129).

28653299871 is a wasteful number, since it uses less digits than its factorization.

28653299871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137158.

The product of its digits is 13063680, while the sum is 60.

The spelling of 28653299871 in words is "twenty-eight billion, six hundred fifty-three million, two hundred ninety-nine thousand, eight hundred seventy-one".