13457747742439 has 48 divisors (see below), whose sum is σ = 18536625709056. Its totient is φ = 9603678168000.

The previous prime is 13457747742437. The next prime is 13457747742451. The reversal of 13457747742439 is 93424774775431.

It is not a de Polignac number, because 13457747742439 - 2¹ = 13457747742437 is a prime.

It is a super-2 number, since 2×13457747742439² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457747742437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6671587 + ... + 8451364.

It is an arithmetic number, because the mean of its divisors is an integer number (386179702272).

Almost surely, 2^{13457747742439} is an apocalyptic number.

13457747742439 is a deficient number, since it is larger than the sum of its proper divisors (5078877966617).

13457747742439 is a wasteful number, since it uses less digits than its factorization.

13457747742439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15123116 (or 15123109 counting only the distinct ones).

The product of its digits is 497871360, while the sum is 67.

The spelling of 13457747742439 in words is "thirteen trillion, four hundred fifty-seven billion, seven hundred forty-seven million, seven hundred forty-two thousand, four hundred thirty-nine".