28745742195 has 24 divisors (see below), whose sum is σ = 50062111632. Its totient is φ = 15258398400.

The previous prime is 28745742173. The next prime is 28745742197. The reversal of 28745742195 is 59124754782.

28745742195 is a `hidden beast` number, since 2 + 87 + 4 + 57 + 421 + 95 = 666.

It is not a de Polignac number, because 28745742195 - 2²¹ = 28743645043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28745742197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1504236 + ... + 1523225.

It is an arithmetic number, because the mean of its divisors is an integer number (2085921318).

Almost surely, 2^28745742195 is an apocalyptic number.

28745742195 is a deficient number, since it is larger than the sum of its proper divisors (21316369437).

28745742195 is a wasteful number, since it uses less digits than its factorization.

28745742195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027683 (or 3027680 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 28745742195 in words is "twenty-eight billion, seven hundred forty-five million, seven hundred forty-two thousand, one hundred ninety-five".