126875507389 has 2 divisors, whose sum is σ = 126875507390. Its totient is φ = 126875507388.

The previous prime is 126875507387. The next prime is 126875507419. The reversal of 126875507389 is 983705578621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122529401764 + 4346105625 = 350042^2 + 65925^2 .

It is a cyclic number.

It is not a de Polignac number, because 126875507389 - 2¹ = 126875507387 is a prime.

Together with 126875507387, 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 (126875507387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63437753694 + 63437753695.

It is an arithmetic number, because the mean of its divisors is an integer number (63437753695).

Almost surely, 2^126875507389 is an apocalyptic number.

It is an amenable number.

126875507389 is a deficient number, since it is larger than the sum of its proper divisors (1).

126875507389 is an equidigital number, since it uses as much as digits as its factorization.

126875507389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 126875507389 in words is "one hundred twenty-six billion, eight hundred seventy-five million, five hundred seven thousand, three hundred eighty-nine".