28720152149 has 8 divisors (see below), whose sum is σ = 31587467520. Its totient is φ = 25946847216.

The previous prime is 28720152137. The next prime is 28720152179. The reversal of 28720152149 is 94125102782.

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 28720152149 - 2⁸ = 28720151893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28720152119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23501969 + ... + 23503190.

It is an arithmetic number, because the mean of its divisors is an integer number (3948433440).

Almost surely, 2^28720152149 is an apocalyptic number.

It is an amenable number.

28720152149 is a deficient number, since it is larger than the sum of its proper divisors (2867315371).

28720152149 is a wasteful number, since it uses less digits than its factorization.

28720152149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47005219.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 28720152149 in words is "twenty-eight billion, seven hundred twenty million, one hundred fifty-two thousand, one hundred forty-nine".