28470253634 has 8 divisors (see below), whose sum is σ = 45217461708. Its totient is φ = 13397766400.

The previous prime is 28470253633. The next prime is 28470253673. The reversal of 28470253634 is 43635207482.

It can be written as a sum of positive squares in 2 ways, for example, as 28307053009 + 163200625 = 168247^2 + 12775^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28470253633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418680167 + ... + 418680234.

Almost surely, 2^28470253634 is an apocalyptic number.

28470253634 is a deficient number, since it is larger than the sum of its proper divisors (16747208074).

28470253634 is a wasteful number, since it uses less digits than its factorization.

28470253634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837360420.

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 28470253634 in words is "twenty-eight billion, four hundred seventy million, two hundred fifty-three thousand, six hundred thirty-four".