28353599948 has 24 divisors (see below), whose sum is σ = 50682777600. Its totient is φ = 13872904848.

The previous prime is 28353599941. The next prime is 28353599959. The reversal of 28353599948 is 84999535382.

It is a super-2 number, since 2×28353599948² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28353599941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219363 + ... + 2232101.

It is an arithmetic number, because the mean of its divisors is an integer number (2111782400).

Almost surely, 2^28353599948 is an apocalyptic number.

It is an amenable number.

28353599948 is a deficient number, since it is larger than the sum of its proper divisors (22329177652).

28353599948 is a wasteful number, since it uses less digits than its factorization.

28353599948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24629 (or 24627 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 65.

The spelling of 28353599948 in words is "twenty-eight billion, three hundred fifty-three million, five hundred ninety-nine thousand, nine hundred forty-eight".