28128031272310 has 8 divisors (see below), whose sum is σ = 50630456290176. Its totient is φ = 11251212508920.

The previous prime is 28128031272293. The next prime is 28128031272323. The reversal of 28128031272310 is 1327213082182.

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

It is a super-2 number, since 2×28128031272310² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1406401563606 + ... + 1406401563625.

It is an arithmetic number, because the mean of its divisors is an integer number (6328807036272).

Almost surely, 2^{28128031272310} is an apocalyptic number.

28128031272310 is a deficient number, since it is larger than the sum of its proper divisors (22502425017866).

28128031272310 is a wasteful number, since it uses less digits than its factorization.

28128031272310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812803127238.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 28128031272310 in words is "twenty-eight trillion, one hundred twenty-eight billion, thirty-one million, two hundred seventy-two thousand, three hundred ten".