121864069248 has 64 divisors (see below), whose sum is σ = 334143448320. Its totient is φ = 39310986240.

The previous prime is 121864069219. The next prime is 121864069307. The reversal of 121864069248 is 842960468121.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 121864069248.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5106715 + ... + 5130522.

It is an arithmetic number, because the mean of its divisors is an integer number (5220991380).

Almost surely, 2^121864069248 is an apocalyptic number.

It is an amenable number.

121864069248 is an abundant number, since it is smaller than the sum of its proper divisors (212279379072).

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

121864069248 is a wasteful number, since it uses less digits than its factorization.

121864069248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10237285 (or 10237273 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 121864069248 in words is "one hundred twenty-one billion, eight hundred sixty-four million, sixty-nine thousand, two hundred forty-eight".