121676446764 has 18 divisors (see below), whose sum is σ = 307571018300. Its totient is φ = 40558815576.

The previous prime is 121676446757. The next prime is 121676446783. The reversal of 121676446764 is 467644676121.

121676446764 is a `hidden beast` number, since 1 + 2 + 1 + 67 + 64 + 467 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×121676446764² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121676446764.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1689950614 + ... + 1689950685.

Almost surely, 2^121676446764 is an apocalyptic number.

It is an amenable number.

121676446764 is an abundant number, since it is smaller than the sum of its proper divisors (185894571536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121676446764 is a wasteful number, since it uses less digits than its factorization.

121676446764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379901309 (or 3379901304 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 121676446764 in words is "one hundred twenty-one billion, six hundred seventy-six million, four hundred forty-six thousand, seven hundred sixty-four".