121409091678676 has 6 divisors (see below), whose sum is σ = 212465910437690. Its totient is φ = 60704545839336.

The previous prime is 121409091678659. The next prime is 121409091678691. The reversal of 121409091678676 is 676876190904121.

It can be written as a sum of positive squares in only one way, i.e., 63640123330576 + 57768968348100 = 7977476^2 + 7600590^2 .

It is a super-2 number, since 2×121409091678676² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 15176136459831 + ... + 15176136459838.

Almost surely, 2^{121409091678676} is an apocalyptic number.

It is an amenable number.

121409091678676 is a deficient number, since it is larger than the sum of its proper divisors (91056818759014).

121409091678676 is a wasteful number, since it uses less digits than its factorization.

121409091678676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30352272919673 (or 30352272919671 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 67.

The spelling of 121409091678676 in words is "one hundred twenty-one trillion, four hundred nine billion, ninety-one million, six hundred seventy-eight thousand, six hundred seventy-six".