28700466765 has 32 divisors (see below), whose sum is σ = 46285862400. Its totient is φ = 15185694720.

The previous prime is 28700466761. The next prime is 28700466787. The reversal of 28700466765 is 56766400782.

It is not a de Polignac number, because 28700466765 - 2² = 28700466761 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28700466761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949485 + ... + 979245.

It is an arithmetic number, because the mean of its divisors is an integer number (1446433200).

Almost surely, 2^28700466765 is an apocalyptic number.

It is an amenable number.

28700466765 is a deficient number, since it is larger than the sum of its proper divisors (17585395635).

28700466765 is a wasteful number, since it uses less digits than its factorization.

28700466765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30277.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 28700466765 in words is "twenty-eight billion, seven hundred million, four hundred sixty-six thousand, seven hundred sixty-five".