28733917549 has 8 divisors (see below), whose sum is σ = 29986516800. Its totient is φ = 27481593216.

The previous prime is 28733917523. The next prime is 28733917559. The reversal of 28733917549 is 94571933782.

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 28733917549 - 2¹⁹ = 28733393261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28733917493 and 28733917502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28733917559) 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, 161277 + ... + 288925.

It is an arithmetic number, because the mean of its divisors is an integer number (3748314600).

Almost surely, 2^28733917549 is an apocalyptic number.

It is an amenable number.

28733917549 is a deficient number, since it is larger than the sum of its proper divisors (1252599251).

28733917549 is a wasteful number, since it uses less digits than its factorization.

28733917549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137459.

The product of its digits is 11430720, while the sum is 58.

The spelling of 28733917549 in words is "twenty-eight billion, seven hundred thirty-three million, nine hundred seventeen thousand, five hundred forty-nine".