126554645323619 has 2 divisors, whose sum is σ = 126554645323620. Its totient is φ = 126554645323618.

The previous prime is 126554645323537. The next prime is 126554645323627. The reversal of 126554645323619 is 916323546455621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126554645323619 is a prime.

It is a super-2 number, since 2×126554645323619² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126554645323219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63277322661809 + 63277322661810.

It is an arithmetic number, because the mean of its divisors is an integer number (63277322661810).

Almost surely, 2^{126554645323619} is an apocalyptic number.

126554645323619 is a deficient number, since it is larger than the sum of its proper divisors (1).

126554645323619 is an equidigital number, since it uses as much as digits as its factorization.

126554645323619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968000, while the sum is 62.

The spelling of 126554645323619 in words is "one hundred twenty-six trillion, five hundred fifty-four billion, six hundred forty-five million, three hundred twenty-three thousand, six hundred nineteen".