121762370669 has 2 divisors, whose sum is σ = 121762370670. Its totient is φ = 121762370668.

The previous prime is 121762370663. The next prime is 121762370699. The reversal of 121762370669 is 966073267121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112067605225 + 9694765444 = 334765^2 + 98462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121762370669 is a prime.

It is a super-2 number, since 2×121762370669² (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 (121762370663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60881185334 + 60881185335.

It is an arithmetic number, because the mean of its divisors is an integer number (60881185335).

Almost surely, 2^121762370669 is an apocalyptic number.

It is an amenable number.

121762370669 is a deficient number, since it is larger than the sum of its proper divisors (1).

121762370669 is an equidigital number, since it uses as much as digits as its factorization.

121762370669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 121762370669 in words is "one hundred twenty-one billion, seven hundred sixty-two million, three hundred seventy thousand, six hundred sixty-nine".