20873374615 has 16 divisors (see below), whose sum is σ = 25860796416. Its totient is φ = 16157066400.

The previous prime is 20873374607. The next prime is 20873374637. The reversal of 20873374615 is 51647337802.

It is a happy number.

It is not a de Polignac number, because 20873374615 - 2³ = 20873374607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248904 + ... + 1265506.

It is an arithmetic number, because the mean of its divisors is an integer number (1616299776).

Almost surely, 2^20873374615 is an apocalyptic number.

20873374615 is a deficient number, since it is larger than the sum of its proper divisors (4987421801).

20873374615 is a wasteful number, since it uses less digits than its factorization.

20873374615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24750.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 20873374615 in words is "twenty billion, eight hundred seventy-three million, three hundred seventy-four thousand, six hundred fifteen".