14921587757 has 2 divisors, whose sum is σ = 14921587758. Its totient is φ = 14921587756.

The previous prime is 14921587693. The next prime is 14921587787. The reversal of 14921587757 is 75778512941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9735571561 + 5186016196 = 98669^2 + 72014^2 .

It is a cyclic number.

It is not a de Polignac number, because 14921587757 - 2⁶ = 14921587693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14921587787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7460793878 + 7460793879.

It is an arithmetic number, because the mean of its divisors is an integer number (7460793879).

Almost surely, 2^14921587757 is an apocalyptic number.

It is an amenable number.

14921587757 is a deficient number, since it is larger than the sum of its proper divisors (1).

14921587757 is an equidigital number, since it uses as much as digits as its factorization.

14921587757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 56.

The spelling of 14921587757 in words is "fourteen billion, nine hundred twenty-one million, five hundred eighty-seven thousand, seven hundred fifty-seven".