14745757681 has 2 divisors, whose sum is σ = 14745757682. Its totient is φ = 14745757680.

The previous prime is 14745757669. The next prime is 14745757717. The reversal of 14745757681 is 18675754741.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14557629025 + 188128656 = 120655^2 + 13716^2 .

It is a cyclic number.

It is not a de Polignac number, because 14745757681 - 2²⁵ = 14712203249 is a prime.

It is a super-2 number, since 2×14745757681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14745757651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7372878840 + 7372878841.

It is an arithmetic number, because the mean of its divisors is an integer number (7372878841).

Almost surely, 2^14745757681 is an apocalyptic number.

It is an amenable number.

14745757681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14745757681 is an equidigital number, since it uses as much as digits as its factorization.

14745757681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6585600, while the sum is 55.

The spelling of 14745757681 in words is "fourteen billion, seven hundred forty-five million, seven hundred fifty-seven thousand, six hundred eighty-one".