28276131133548 has 36 divisors (see below), whose sum is σ = 71478712403280. Its totient is φ = 9424989816096.

The previous prime is 28276131133541. The next prime is 28276131133589. The reversal of 28276131133548 is 84533113167282.

28276131133548 is a `hidden beast` number, since 2 + 8 + 2 + 7 + 61 + 3 + 1 + 1 + 33 + 548 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×28276131133548² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28276131133494 and 28276131133503.

It is not an unprimeable number, because it can be changed into a prime (28276131133541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15245415 + ... + 16999262.

It is an arithmetic number, because the mean of its divisors is an integer number (1985519788980).

Almost surely, 2^{28276131133548} is an apocalyptic number.

It is an amenable number.

28276131133548 is an abundant number, since it is smaller than the sum of its proper divisors (43202581269732).

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

28276131133548 is a wasteful number, since it uses less digits than its factorization.

28276131133548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32269046 (or 32269041 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 28276131133548 in words is "twenty-eight trillion, two hundred seventy-six billion, one hundred thirty-one million, one hundred thirty-three thousand, five hundred forty-eight".