28041880815 has 48 divisors (see below), whose sum is σ = 52360150752. Its totient is φ = 13801197312.

The previous prime is 28041880787. The next prime is 28041880819. The reversal of 28041880815 is 51808814082.

28041880815 is a `hidden beast` number, since 2 + 80 + 418 + 80 + 81 + 5 = 666.

It is not a de Polignac number, because 28041880815 - 2³⁰ = 26968138991 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28041880819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3460909 + ... + 3469001.

It is an arithmetic number, because the mean of its divisors is an integer number (1090836474).

Almost surely, 2^28041880815 is an apocalyptic number.

28041880815 is a deficient number, since it is larger than the sum of its proper divisors (24318269937).

28041880815 is a wasteful number, since it uses less digits than its factorization.

28041880815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14040 (or 14037 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 28041880815 in words is "twenty-eight billion, forty-one million, eight hundred eighty thousand, eight hundred fifteen".