28737017745 has 32 divisors (see below), whose sum is σ = 46279857792. Its totient is φ = 15226417152.

The previous prime is 28737017741. The next prime is 28737017773. The reversal of 28737017745 is 54771073782.

It is not a de Polignac number, because 28737017745 - 2² = 28737017741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28737017741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272059 + ... + 2284671.

It is an arithmetic number, because the mean of its divisors is an integer number (1446245556).

Almost surely, 2^28737017745 is an apocalyptic number.

It is an amenable number.

28737017745 is a deficient number, since it is larger than the sum of its proper divisors (17542840047).

28737017745 is a wasteful number, since it uses less digits than its factorization.

28737017745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13601.

The product of its (nonzero) digits is 2304960, while the sum is 51.

The spelling of 28737017745 in words is "twenty-eight billion, seven hundred thirty-seven million, seventeen thousand, seven hundred forty-five".