28754161845 has 32 divisors (see below), whose sum is σ = 49399061760. Its totient is φ = 14230164480.

The previous prime is 28754161837. The next prime is 28754161897. The reversal of 28754161845 is 54816145782.

It is a happy number.

It is not a de Polignac number, because 28754161845 - 2³ = 28754161837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775990 + ... + 812199.

It is an arithmetic number, because the mean of its divisors is an integer number (1543720680).

Almost surely, 2^28754161845 is an apocalyptic number.

It is an amenable number.

28754161845 is a deficient number, since it is larger than the sum of its proper divisors (20644899915).

28754161845 is a wasteful number, since it uses less digits than its factorization.

28754161845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588285.

The product of its digits is 2150400, while the sum is 51.

The spelling of 28754161845 in words is "twenty-eight billion, seven hundred fifty-four million, one hundred sixty-one thousand, eight hundred forty-five".