126964381919503 has 2 divisors, whose sum is σ = 126964381919504. Its totient is φ = 126964381919502.

The previous prime is 126964381919461. The next prime is 126964381919509. The reversal of 126964381919503 is 305919183469621.

It is a strong prime.

It is an emirp because it is prime and its reverse (305919183469621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126964381919503 - 2²¹ = 126964379822351 is a prime.

It is a super-2 number, since 2×126964381919503² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126964381919509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63482190959751 + 63482190959752.

It is an arithmetic number, because the mean of its divisors is an integer number (63482190959752).

Almost surely, 2^{126964381919503} is an apocalyptic number.

126964381919503 is a deficient number, since it is larger than the sum of its proper divisors (1).

126964381919503 is an equidigital number, since it uses as much as digits as its factorization.

126964381919503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75582720, while the sum is 67.

The spelling of 126964381919503 in words is "one hundred twenty-six trillion, nine hundred sixty-four billion, three hundred eighty-one million, nine hundred nineteen thousand, five hundred three".