121448606757677 has 2 divisors, whose sum is σ = 121448606757678. Its totient is φ = 121448606757676.

The previous prime is 121448606757649. The next prime is 121448606757689. The reversal of 121448606757677 is 776757606844121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104950476877156 + 16498129880521 = 10244534^2 + 4061789^2 .

It is a cyclic number.

It is not a de Polignac number, because 121448606757677 - 2⁶ = 121448606757613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121448606757677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121448606757697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60724303378838 + 60724303378839.

It is an arithmetic number, because the mean of its divisors is an integer number (60724303378839).

Almost surely, 2^{121448606757677} is an apocalyptic number.

It is an amenable number.

121448606757677 is a deficient number, since it is larger than the sum of its proper divisors (1).

121448606757677 is an equidigital number, since it uses as much as digits as its factorization.

121448606757677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663828480, while the sum is 71.

The spelling of 121448606757677 in words is "one hundred twenty-one trillion, four hundred forty-eight billion, six hundred six million, seven hundred fifty-seven thousand, six hundred seventy-seven".