13945107031815 has 8 divisors (see below), whose sum is σ = 22312171250928. Its totient is φ = 7437390416960.

The previous prime is 13945107031771. The next prime is 13945107031861. The reversal of 13945107031815 is 51813070154931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13945107031815 - 2¹⁰ = 13945107030791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464836901046 + ... + 464836901075.

It is an arithmetic number, because the mean of its divisors is an integer number (2789021406366).

Almost surely, 2^{13945107031815} is an apocalyptic number.

13945107031815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13945107031815 is a deficient number, since it is larger than the sum of its proper divisors (8367064219113).

13945107031815 is an equidigital number, since it uses as much as digits as its factorization.

13945107031815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929673802129.

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 13945107031815 in words is "thirteen trillion, nine hundred forty-five billion, one hundred seven million, thirty-one thousand, eight hundred fifteen".