28474763149 has 8 divisors (see below), whose sum is σ = 32562699840. Its totient is φ = 24391854816.

The previous prime is 28474763147. The next prime is 28474763159. The reversal of 28474763149 is 94136747482.

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

It is not a de Polignac number, because 28474763149 - 2¹ = 28474763147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28474763149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28474763143) 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, 1244944 + ... + 1267609.

It is an arithmetic number, because the mean of its divisors is an integer number (4070337480).

Almost surely, 2^28474763149 is an apocalyptic number.

It is an amenable number.

28474763149 is a deficient number, since it is larger than the sum of its proper divisors (4087936691).

28474763149 is a wasteful number, since it uses less digits than its factorization.

28474763149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514179.

The product of its digits is 8128512, while the sum is 55.

The spelling of 28474763149 in words is "twenty-eight billion, four hundred seventy-four million, seven hundred sixty-three thousand, one hundred forty-nine".