13440851738 has 16 divisors (see below), whose sum is σ = 20260917504. Its totient is φ = 6687267840.

The previous prime is 13440851717. The next prime is 13440851771. The reversal of 13440851738 is 83715804431.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496181 + ... + 522567.

It is an arithmetic number, because the mean of its divisors is an integer number (1266307344).

Almost surely, 2^13440851738 is an apocalyptic number.

13440851738 is a deficient number, since it is larger than the sum of its proper divisors (6820065766).

13440851738 is a wasteful number, since it uses less digits than its factorization.

13440851738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27637.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 13440851738 in words is "thirteen billion, four hundred forty million, eight hundred fifty-one thousand, seven hundred thirty-eight".