28456932926015 has 128 divisors (see below), whose sum is σ = 39872242980864. Its totient is φ = 19292416000000.

The previous prime is 28456932926011. The next prime is 28456932926027. The reversal of 28456932926015 is 51062923965482.

It is a happy number.

It is a Cunningham number, because it is equal to 5334504²-1.

It is not a de Polignac number, because 28456932926015 - 2² = 28456932926011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28456932926011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6748144187 + ... + 6748148403.

It is an arithmetic number, because the mean of its divisors is an integer number (311501898288).

Almost surely, 2^{28456932926015} is an apocalyptic number.

28456932926015 is a deficient number, since it is larger than the sum of its proper divisors (11415310054849).

28456932926015 is a wasteful number, since it uses less digits than its factorization.

28456932926015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 28456932926015 in words is "twenty-eight trillion, four hundred fifty-six billion, nine hundred thirty-two million, nine hundred twenty-six thousand, fifteen".