1992666757 has 2 divisors, whose sum is σ = 1992666758. Its totient is φ = 1992666756.

The previous prime is 1992666659. The next prime is 1992666833. The reversal of 1992666757 is 7576662991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1231237921 + 761428836 = 35089^2 + 27594^2 .

It is an emirp because it is prime and its reverse (7576662991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1992666757 - 2²⁷ = 1858449029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1992667757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996333378 + 996333379.

It is an arithmetic number, because the mean of its divisors is an integer number (996333379).

Almost surely, 2^1992666757 is an apocalyptic number.

It is an amenable number.

1992666757 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992666757 is an equidigital number, since it uses as much as digits as its factorization.

1992666757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8573040, while the sum is 58.

The square root of 1992666757 is about 44639.2961078017. The cubic root of 1992666757 is about 1258.3792794572.

The spelling of 1992666757 in words is "one billion, nine hundred ninety-two million, six hundred sixty-six thousand, seven hundred fifty-seven".