28715744573144 has 32 divisors (see below), whose sum is σ = 54712475654400. Its totient is φ = 14126581556640.

The previous prime is 28715744573107. The next prime is 28715744573161. The reversal of 28715744573144 is 44137544751782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51628814 + ... + 52182045.

It is an arithmetic number, because the mean of its divisors is an integer number (1709764864200).

Almost surely, 2^{28715744573144} is an apocalyptic number.

It is an amenable number.

28715744573144 is a deficient number, since it is larger than the sum of its proper divisors (25996731081256).

28715744573144 is a wasteful number, since it uses less digits than its factorization.

28715744573144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103811423 (or 103811419 counting only the distinct ones).

The product of its digits is 105369600, while the sum is 62.

The spelling of 28715744573144 in words is "twenty-eight trillion, seven hundred fifteen billion, seven hundred forty-four million, five hundred seventy-three thousand, one hundred forty-four".