28062284625 has 128 divisors (see below), whose sum is σ = 56425075200. Its totient is φ = 13704422400.

The previous prime is 28062284609. The next prime is 28062284639. The reversal of 28062284625 is 52648226082.

It is not a de Polignac number, because 28062284625 - 2⁴ = 28062284609 is a prime.

It is a super-2 number, since 2×28062284625² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2116266 + ... + 2129484.

It is an arithmetic number, because the mean of its divisors is an integer number (440820900).

Almost surely, 2^28062284625 is an apocalyptic number.

28062284625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28062284625 is an abundant number, since it is smaller than the sum of its proper divisors (28362790575).

28062284625 is a wasteful number, since it uses less digits than its factorization.

28062284625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297 (or 13281 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 28062284625 in words is "twenty-eight billion, sixty-two million, two hundred eighty-four thousand, six hundred twenty-five".