28714430146015 has 8 divisors (see below), whose sum is σ = 34477986440880. Its totient is φ = 22957763939712.

The previous prime is 28714430145967. The next prime is 28714430146093. The reversal of 28714430146015 is 51064103441782.

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

It is a cyclic number.

It is not a de Polignac number, because 28714430146015 - 2⁹ = 28714430145503 is a prime.

It is a super-2 number, since 2×28714430146015² (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 7 ways as a sum of consecutive naturals, for example, 1722512970 + ... + 1722529639.

It is an arithmetic number, because the mean of its divisors is an integer number (4309748305110).

Almost surely, 2^{28714430146015} is an apocalyptic number.

28714430146015 is a deficient number, since it is larger than the sum of its proper divisors (5763556294865).

28714430146015 is a wasteful number, since it uses less digits than its factorization.

28714430146015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445044281.

The product of its (nonzero) digits is 645120, while the sum is 46.

Adding to 28714430146015 its reverse (51064103441782), we get a palindrome (79778533587797).

The spelling of 28714430146015 in words is "twenty-eight trillion, seven hundred fourteen billion, four hundred thirty million, one hundred forty-six thousand, fifteen".