28331956415 has 16 divisors (see below), whose sum is σ = 38858138112. Its totient is φ = 19426185504.

The previous prime is 28331956357. The next prime is 28331956447. The reversal of 28331956415 is 51465913382.

It is a cyclic number.

It is not a de Polignac number, because 28331956415 - 2¹⁶ = 28331890879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28331956415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694412 + ... + 734078.

It is an arithmetic number, because the mean of its divisors is an integer number (2428633632).

Almost surely, 2^28331956415 is an apocalyptic number.

28331956415 is a deficient number, since it is larger than the sum of its proper divisors (10526181697).

28331956415 is a wasteful number, since it uses less digits than its factorization.

28331956415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60086.

The product of its digits is 777600, while the sum is 47.

The spelling of 28331956415 in words is "twenty-eight billion, three hundred thirty-one million, nine hundred fifty-six thousand, four hundred fifteen".