121561676762 has 16 divisors (see below), whose sum is σ = 192117744000. Its totient is φ = 57573742512.

The previous prime is 121561676711. The next prime is 121561676771. The reversal of 121561676762 is 267676165121.

It is a self number, because there is not a number n which added to its sum of digits gives 121561676762.

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 in 7 ways as a sum of consecutive naturals, for example, 12823637 + ... + 12833112.

It is an arithmetic number, because the mean of its divisors is an integer number (12007359000).

Almost surely, 2^121561676762 is an apocalyptic number.

121561676762 is a deficient number, since it is larger than the sum of its proper divisors (70556067238).

121561676762 is a wasteful number, since it uses less digits than its factorization.

121561676762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25656877.

The product of its digits is 1270080, while the sum is 50.

The spelling of 121561676762 in words is "one hundred twenty-one billion, five hundred sixty-one million, six hundred seventy-six thousand, seven hundred sixty-two".