16957342949 has 2 divisors, whose sum is σ = 16957342950. Its totient is φ = 16957342948.

The previous prime is 16957342933. The next prime is 16957342981. The reversal of 16957342949 is 94924375961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8883062500 + 8074280449 = 94250^2 + 89857^2 .

It is a cyclic number.

It is not a de Polignac number, because 16957342949 - 2⁴ = 16957342933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16957342999) 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, 8478671474 + 8478671475.

It is an arithmetic number, because the mean of its divisors is an integer number (8478671475).

Almost surely, 2^16957342949 is an apocalyptic number.

It is an amenable number.

16957342949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16957342949 is an equidigital number, since it uses as much as digits as its factorization.

16957342949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 59.

The spelling of 16957342949 in words is "sixteen billion, nine hundred fifty-seven million, three hundred forty-two thousand, nine hundred forty-nine".