14941956721 has 2 divisors, whose sum is σ = 14941956722. Its totient is φ = 14941956720.

The previous prime is 14941956719. The next prime is 14941956737. The reversal of 14941956721 is 12765914941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13400609121 + 1541347600 = 115761^2 + 39260^2 .

It is a cyclic number.

It is not a de Polignac number, because 14941956721 - 2¹ = 14941956719 is a prime.

Together with 14941956719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14941956751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7470978360 + 7470978361.

It is an arithmetic number, because the mean of its divisors is an integer number (7470978361).

Almost surely, 2^14941956721 is an apocalyptic number.

It is an amenable number.

14941956721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14941956721 is an equidigital number, since it uses as much as digits as its factorization.

14941956721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 14941956721 in words is "fourteen billion, nine hundred forty-one million, nine hundred fifty-six thousand, seven hundred twenty-one".