28310213465 has 16 divisors (see below), whose sum is σ = 35861616000. Its totient is φ = 21395354112.

The previous prime is 28310213431. The next prime is 28310213497. The reversal of 28310213465 is 56431201382.

28310213465 is nontrivially palindromic in base 9.

It is a cyclic number.

It is not a de Polignac number, because 28310213465 - 2⁸ = 28310213209 is a prime.

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, 388565 + ... + 455634.

It is an arithmetic number, because the mean of its divisors is an integer number (2241351000).

Almost surely, 2^28310213465 is an apocalyptic number.

It is an amenable number.

28310213465 is a deficient number, since it is larger than the sum of its proper divisors (7551402535).

28310213465 is a wasteful number, since it uses less digits than its factorization.

28310213465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844576.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 28310213465 in words is "twenty-eight billion, three hundred ten million, two hundred thirteen thousand, four hundred sixty-five".