28342078765 has 64 divisors (see below), whose sum is σ = 45736814592. Its totient is φ = 16282886400.

The previous prime is 28342078643. The next prime is 28342078781. The reversal of 28342078765 is 56787024382.

It is a happy number.

It is not a de Polignac number, because 28342078765 - 2⁷ = 28342078637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3414270 + ... + 3422560.

It is an arithmetic number, because the mean of its divisors is an integer number (714637728).

Almost surely, 2^28342078765 is an apocalyptic number.

It is an amenable number.

28342078765 is a deficient number, since it is larger than the sum of its proper divisors (17394735827).

28342078765 is a wasteful number, since it uses less digits than its factorization.

28342078765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 28342078765 in words is "twenty-eight billion, three hundred forty-two million, seventy-eight thousand, seven hundred sixty-five".