126901906919 has 2 divisors, whose sum is σ = 126901906920. Its totient is φ = 126901906918.

The previous prime is 126901906913. The next prime is 126901906933. The reversal of 126901906919 is 919609109621.

It is a weak prime.

It is an emirp because it is prime and its reverse (919609109621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126901906919 - 2²⁸ = 126633471463 is a prime.

It is a super-2 number, since 2×126901906919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126901906913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63450953459 + 63450953460.

It is an arithmetic number, because the mean of its divisors is an integer number (63450953460).

Almost surely, 2^126901906919 is an apocalyptic number.

126901906919 is a deficient number, since it is larger than the sum of its proper divisors (1).

126901906919 is an equidigital number, since it uses as much as digits as its factorization.

126901906919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 126901906919 in words is "one hundred twenty-six billion, nine hundred one million, nine hundred six thousand, nine hundred nineteen".