2126437969 has 2 divisors, whose sum is σ = 2126437970. Its totient is φ = 2126437968.

The previous prime is 2126437927. The next prime is 2126437993. The reversal of 2126437969 is 9697346212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1179029569 + 947408400 = 34337^2 + 30780^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126437969 - 2¹⁵ = 2126405201 is a prime.

It is a super-2 number, since 2×2126437969² = 9043476872009689922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2126437669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063218984 + 1063218985.

It is an arithmetic number, because the mean of its divisors is an integer number (1063218985).

Almost surely, 2^2126437969 is an apocalyptic number.

It is an amenable number.

2126437969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126437969 is an equidigital number, since it uses as much as digits as its factorization.

2126437969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 2126437969 is about 46113.3166124494. The cubic root of 2126437969 is about 1285.9307239194.

The spelling of 2126437969 in words is "two billion, one hundred twenty-six million, four hundred thirty-seven thousand, nine hundred sixty-nine".