121765746419 has 2 divisors, whose sum is σ = 121765746420. Its totient is φ = 121765746418.

The previous prime is 121765746413. The next prime is 121765746437. The reversal of 121765746419 is 914647567121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121765746419 - 2⁸ = 121765746163 is a prime.

It is a super-2 number, since 2×121765746419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121765746413) 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, 60882873209 + 60882873210.

It is an arithmetic number, because the mean of its divisors is an integer number (60882873210).

Almost surely, 2^121765746419 is an apocalyptic number.

121765746419 is a deficient number, since it is larger than the sum of its proper divisors (1).

121765746419 is an equidigital number, since it uses as much as digits as its factorization.

121765746419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The spelling of 121765746419 in words is "one hundred twenty-one billion, seven hundred sixty-five million, seven hundred forty-six thousand, four hundred nineteen".