28334390755465 has 24 divisors (see below), whose sum is σ = 36350096709888. Its totient is φ = 21179878198080.

The previous prime is 28334390755441. The next prime is 28334390755477. The reversal of 28334390755465 is 56455709343382.

It is a happy number.

It is not a de Polignac number, because 28334390755465 - 2¹⁹ = 28334390231177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28334390755397 and 28334390755406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108551287 + ... + 108811996.

It is an arithmetic number, because the mean of its divisors is an integer number (1514587362912).

Almost surely, 2^{28334390755465} is an apocalyptic number.

It is an amenable number.

28334390755465 is a deficient number, since it is larger than the sum of its proper divisors (8015705954423).

28334390755465 is a wasteful number, since it uses less digits than its factorization.

28334390755465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217363377 (or 217363348 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 64.

The spelling of 28334390755465 in words is "twenty-eight trillion, three hundred thirty-four billion, three hundred ninety million, seven hundred fifty-five thousand, four hundred sixty-five".