13440346478085 has 16 divisors (see below), whose sum is σ = 21561294623040. Its totient is φ = 7149271368960.

The previous prime is 13440346478077. The next prime is 13440346478093. The reversal of 13440346478085 is 58087464304431.

It is an interprime number because it is at equal distance from previous prime (13440346478077) and next prime (13440346478093).

It is not a de Polignac number, because 13440346478085 - 2³ = 13440346478077 is a prime.

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, 1182082836 + ... + 1182094205.

It is an arithmetic number, because the mean of its divisors is an integer number (1347580913940).

Almost surely, 2^{13440346478085} is an apocalyptic number.

13440346478085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13440346478085 is a deficient number, since it is larger than the sum of its proper divisors (8120948144955).

13440346478085 is a wasteful number, since it uses less digits than its factorization.

13440346478085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364177428.

The product of its (nonzero) digits is 30965760, while the sum is 57.

The spelling of 13440346478085 in words is "thirteen trillion, four hundred forty billion, three hundred forty-six million, four hundred seventy-eight thousand, eighty-five".