28362902225 has 48 divisors (see below), whose sum is σ = 41392017408. Its totient is φ = 18872144640.

The previous prime is 28362902207. The next prime is 28362902237. The reversal of 28362902225 is 52220926382.

It is a de Polignac number, because none of the positive numbers 2^k-28362902225 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2474207 + ... + 2485643.

It is an arithmetic number, because the mean of its divisors is an integer number (862333696).

Almost surely, 2^28362902225 is an apocalyptic number.

28362902225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28362902225 is a deficient number, since it is larger than the sum of its proper divisors (13029115183).

28362902225 is a wasteful number, since it uses less digits than its factorization.

28362902225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874 (or 11869 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 28362902225 in words is "twenty-eight billion, three hundred sixty-two million, nine hundred two thousand, two hundred twenty-five".