13781390239475 has 12 divisors (see below), whose sum is σ = 17452518023904. Its totient is φ = 10790535335520.

The previous prime is 13781390239469. The next prime is 13781390239483. The reversal of 13781390239475 is 57493209318731.

It is not a de Polignac number, because 13781390239475 - 2¹⁶ = 13781390173939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5864420204 + ... + 5864422553.

It is an arithmetic number, because the mean of its divisors is an integer number (1454376501992).

Almost surely, 2^{13781390239475} is an apocalyptic number.

13781390239475 is a deficient number, since it is larger than the sum of its proper divisors (3671127784429).

13781390239475 is a wasteful number, since it uses less digits than its factorization.

13781390239475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11728842814 (or 11728842809 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 13781390239475 in words is "thirteen trillion, seven hundred eighty-one billion, three hundred ninety million, two hundred thirty-nine thousand, four hundred seventy-five".