7937812261429 has 2 divisors, whose sum is σ = 7937812261430. Its totient is φ = 7937812261428.

The previous prime is 7937812261427. The next prime is 7937812261453. The reversal of 7937812261429 is 9241622187397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6329803128100 + 1608009133329 = 2515910^2 + 1268073^2 .

It is a cyclic number.

It is not a de Polignac number, because 7937812261429 - 2¹ = 7937812261427 is a prime.

It is a super-2 number, since 2×7937812261429² (a number of 27 digits) contains 22 as substring.

Together with 7937812261427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7937812261427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3968906130714 + 3968906130715.

It is an arithmetic number, because the mean of its divisors is an integer number (3968906130715).

Almost surely, 2^{7937812261429} is an apocalyptic number.

It is an amenable number.

7937812261429 is a deficient number, since it is larger than the sum of its proper divisors (1).

7937812261429 is an equidigital number, since it uses as much as digits as its factorization.

7937812261429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 61.

The spelling of 7937812261429 in words is "seven trillion, nine hundred thirty-seven billion, eight hundred twelve million, two hundred sixty-one thousand, four hundred twenty-nine".