28025715136312 has 8 divisors (see below), whose sum is σ = 52548215880600. Its totient is φ = 14012857568152.

The previous prime is 28025715136303. The next prime is 28025715136327. The reversal of 28025715136312 is 21363151752082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×28025715136312² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1751607196012 + ... + 1751607196027.

It is an arithmetic number, because the mean of its divisors is an integer number (6568526985075).

Almost surely, 2^{28025715136312} is an apocalyptic number.

It is an amenable number.

28025715136312 is a deficient number, since it is larger than the sum of its proper divisors (24522500744288).

28025715136312 is a wasteful number, since it uses less digits than its factorization.

28025715136312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503214392045 (or 3503214392041 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

Adding to 28025715136312 its reverse (21363151752082), we get a palindrome (49388866888394).

The spelling of 28025715136312 in words is "twenty-eight trillion, twenty-five billion, seven hundred fifteen million, one hundred thirty-six thousand, three hundred twelve".