13920282915 has 64 divisors (see below), whose sum is σ = 27814966272. Its totient is φ = 5775321600.

The previous prime is 13920282889. The next prime is 13920282917. The reversal of 13920282915 is 51928202931.

It is not a de Polignac number, because 13920282915 - 2¹³ = 13920274723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13920282917) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 698185 + ... + 717845.

It is an arithmetic number, because the mean of its divisors is an integer number (434608848).

Almost surely, 2^13920282915 is an apocalyptic number.

13920282915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13920282915 is a deficient number, since it is larger than the sum of its proper divisors (13894683357).

13920282915 is a wasteful number, since it uses less digits than its factorization.

13920282915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300.

The product of its (nonzero) digits is 77760, while the sum is 42.

It can be divided in two parts, 13920 and 282915, that added together give a triangular number (296835 = T₇₇₀).

The spelling of 13920282915 in words is "thirteen billion, nine hundred twenty million, two hundred eighty-two thousand, nine hundred fifteen".