28452115634 has 4 divisors (see below), whose sum is σ = 42678173454. Its totient is φ = 14226057816.

The previous prime is 28452115631. The next prime is 28452115723. The reversal of 28452115634 is 43651125482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20421267409 + 8030848225 = 142903^2 + 89615^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28452115591 and 28452115600.

It is not an unprimeable number, because it can be changed into a prime (28452115631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7113028907 + ... + 7113028910.

Almost surely, 2^28452115634 is an apocalyptic number.

28452115634 is a deficient number, since it is larger than the sum of its proper divisors (14226057820).

28452115634 is a wasteful number, since it uses less digits than its factorization.

28452115634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226057819.

The product of its digits is 230400, while the sum is 41.

The spelling of 28452115634 in words is "twenty-eight billion, four hundred fifty-two million, one hundred fifteen thousand, six hundred thirty-four".