28057750547 has 8 divisors (see below), whose sum is σ = 29538134160. Its totient is φ = 26577732960.

The previous prime is 28057750529. The next prime is 28057750549. The reversal of 28057750547 is 74505775082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28057750547 - 2²⁰ = 28056701971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28057750495 and 28057750504.

It is not an unprimeable number, because it can be changed into a prime (28057750549) 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, 73493 + ... + 248025.

It is an arithmetic number, because the mean of its divisors is an integer number (3692266770).

Almost surely, 2^28057750547 is an apocalyptic number.

28057750547 is a deficient number, since it is larger than the sum of its proper divisors (1480383613).

28057750547 is a wasteful number, since it uses less digits than its factorization.

28057750547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183013.

The product of its (nonzero) digits is 2744000, while the sum is 50.

The spelling of 28057750547 in words is "twenty-eight billion, fifty-seven million, seven hundred fifty thousand, five hundred forty-seven".