28127225723 has 8 divisors (see below), whose sum is σ = 28383642000. Its totient is φ = 27871711648.

The previous prime is 28127225689. The next prime is 28127225741. The reversal of 28127225723 is 32752272182.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28127225723 is a prime.

It is a super-2 number, since 2×28127225723² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28127225123) 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 7 ways as a sum of consecutive naturals, for example, 162836 + ... + 287697.

It is an arithmetic number, because the mean of its divisors is an integer number (3547955250).

Almost surely, 2^28127225723 is an apocalyptic number.

28127225723 is a deficient number, since it is larger than the sum of its proper divisors (256416277).

28127225723 is a wasteful number, since it uses less digits than its factorization.

28127225723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451101.

The product of its digits is 188160, while the sum is 41.

The spelling of 28127225723 in words is "twenty-eight billion, one hundred twenty-seven million, two hundred twenty-five thousand, seven hundred twenty-three".