28400186373 has 8 divisors (see below), whose sum is σ = 40779754848. Its totient is φ = 17477037744.

The previous prime is 28400186357. The next prime is 28400186389. The reversal of 28400186373 is 37368100482.

It is an interprime number because it is at equal distance from previous prime (28400186357) and next prime (28400186389).

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

It is not a de Polignac number, because 28400186373 - 2⁴ = 28400186357 is a prime.

It is a super-2 number, since 2×28400186373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28400186873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364104915 + ... + 364104992.

It is an arithmetic number, because the mean of its divisors is an integer number (5097469356).

Almost surely, 2^28400186373 is an apocalyptic number.

It is an amenable number.

28400186373 is a deficient number, since it is larger than the sum of its proper divisors (12379568475).

28400186373 is a wasteful number, since it uses less digits than its factorization.

28400186373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728209923.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 28400186373 in words is "twenty-eight billion, four hundred million, one hundred eighty-six thousand, three hundred seventy-three".