28659815349 has 16 divisors (see below), whose sum is σ = 42473553984. Its totient is φ = 17041856000.

The previous prime is 28659815329. The next prime is 28659815351. The reversal of 28659815349 is 94351895682.

It is a cyclic number.

It is not a de Polignac number, because 28659815349 - 2¹² = 28659811253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28659815292 and 28659815301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28659815329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8191452 + ... + 8194949.

It is an arithmetic number, because the mean of its divisors is an integer number (2654597124).

Almost surely, 2^28659815349 is an apocalyptic number.

It is an amenable number.

28659815349 is a deficient number, since it is larger than the sum of its proper divisors (13813738635).

28659815349 is a wasteful number, since it uses less digits than its factorization.

28659815349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16386468.

The product of its digits is 18662400, while the sum is 60.

The spelling of 28659815349 in words is "twenty-eight billion, six hundred fifty-nine million, eight hundred fifteen thousand, three hundred forty-nine".