28506834470 has 16 divisors (see below), whose sum is σ = 51608908080. Its totient is φ = 11336821344.

The previous prime is 28506834431. The next prime is 28506834569. The reversal of 28506834470 is 7443860582.

It is a super-2 number, since 2×28506834470² (a number of 22 digits) contains 22 as substring.

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, 8237240 + ... + 8240699.

It is an arithmetic number, because the mean of its divisors is an integer number (3225556755).

Almost surely, 2^28506834470 is an apocalyptic number.

28506834470 is a deficient number, since it is larger than the sum of its proper divisors (23102073610).

28506834470 is a wasteful number, since it uses less digits than its factorization.

28506834470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478119.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 28506834470 in words is "twenty-eight billion, five hundred six million, eight hundred thirty-four thousand, four hundred seventy".