28948148317 has 8 divisors (see below), whose sum is σ = 31582923840. Its totient is φ = 26313893760.

The previous prime is 28948148311. The next prime is 28948148357. The reversal of 28948148317 is 71384184982.

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

It is not a de Polignac number, because 28948148317 - 2³ = 28948148309 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 (28948148311) 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, 9153 + ... + 240790.

It is an arithmetic number, because the mean of its divisors is an integer number (3947865480).

Almost surely, 2^28948148317 is an apocalyptic number.

It is an amenable number.

28948148317 is a deficient number, since it is larger than the sum of its proper divisors (2634775523).

28948148317 is a wasteful number, since it uses less digits than its factorization.

28948148317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260483.

The product of its digits is 3096576, while the sum is 55.

The spelling of 28948148317 in words is "twenty-eight billion, nine hundred forty-eight million, one hundred forty-eight thousand, three hundred seventeen".