28057730415 has 32 divisors (see below), whose sum is σ = 52740688896. Its totient is φ = 12557304960.

The previous prime is 28057730401. The next prime is 28057730417. The reversal of 28057730415 is 51403775082.

It is not a de Polignac number, because 28057730415 - 2⁸ = 28057730159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28057730417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6538119 + ... + 6542408.

It is an arithmetic number, because the mean of its divisors is an integer number (1648146528).

Almost surely, 2^28057730415 is an apocalyptic number.

28057730415 is a deficient number, since it is larger than the sum of its proper divisors (24682958481).

28057730415 is a wasteful number, since it uses less digits than its factorization.

28057730415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080559.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 28057730415 in words is "twenty-eight billion, fifty-seven million, seven hundred thirty thousand, four hundred fifteen".