28323157148 has 24 divisors (see below), whose sum is σ = 58230827760. Its totient is φ = 11883841920.

The previous prime is 28323157133. The next prime is 28323157231. The reversal of 28323157148 is 84175132382.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 28323157099 and 28323157108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24757433 + ... + 24758576.

It is an arithmetic number, because the mean of its divisors is an integer number (2426284490).

Almost surely, 2^28323157148 is an apocalyptic number.

It is an amenable number.

28323157148 is an abundant number, since it is smaller than the sum of its proper divisors (29907670612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28323157148 is a wasteful number, since it uses less digits than its factorization.

28323157148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49516037 (or 49516035 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The spelling of 28323157148 in words is "twenty-eight billion, three hundred twenty-three million, one hundred fifty-seven thousand, one hundred forty-eight".