13957542709 has 16 divisors (see below), whose sum is σ = 16724666880. Its totient is φ = 11498200560.

The previous prime is 13957542679. The next prime is 13957542713. The reversal of 13957542709 is 90724575931.

It is not a de Polignac number, because 13957542709 - 2¹⁵ = 13957509941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13957542719) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1446987 + ... + 1456600.

It is an arithmetic number, because the mean of its divisors is an integer number (1045291680).

Almost surely, 2^13957542709 is an apocalyptic number.

13957542709 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13957542709 is a deficient number, since it is larger than the sum of its proper divisors (2767124171).

13957542709 is a wasteful number, since it uses less digits than its factorization.

13957542709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903640.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 13957542709 in words is "thirteen billion, nine hundred fifty-seven million, five hundred forty-two thousand, seven hundred nine".