121878619576675 has 12 divisors (see below), whose sum is σ = 162754833527440. Its totient is φ = 90002672917920.

The previous prime is 121878619576673. The next prime is 121878619576699. The reversal of 121878619576675 is 576675916878121.

It is not a de Polignac number, because 121878619576675 - 2¹ = 121878619576673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121878619576595 and 121878619576604.

It is not an unprimeable number, because it can be changed into a prime (121878619576673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187505568255 + ... + 187505568904.

Almost surely, 2^{121878619576675} is an apocalyptic number.

121878619576675 is a deficient number, since it is larger than the sum of its proper divisors (40876213950765).

121878619576675 is a wasteful number, since it uses less digits than its factorization.

121878619576675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375011137182 (or 375011137177 counting only the distinct ones).

The product of its digits is 2133734400, while the sum is 79.

The spelling of 121878619576675 in words is "one hundred twenty-one trillion, eight hundred seventy-eight billion, six hundred nineteen million, five hundred seventy-six thousand, six hundred seventy-five".