23140728215 has 16 divisors (see below), whose sum is σ = 30321111456. Its totient is φ = 16814179200.

The previous prime is 23140728209. The next prime is 23140728239. The reversal of 23140728215 is 51282704132.

It is not a de Polignac number, because 23140728215 - 2¹⁸ = 23140466071 is a prime.

It is a Duffinian number.

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, 132356 + ... + 252585.

It is an arithmetic number, because the mean of its divisors is an integer number (1895069466).

Almost surely, 2^23140728215 is an apocalyptic number.

23140728215 is a deficient number, since it is larger than the sum of its proper divisors (7180383241).

23140728215 is a wasteful number, since it uses less digits than its factorization.

23140728215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386050.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 23140728215 in words is "twenty-three billion, one hundred forty million, seven hundred twenty-eight thousand, two hundred fifteen".