121754948518 has 8 divisors (see below), whose sum is σ = 208722768912. Its totient is φ = 52180692216.

The previous prime is 121754948507. The next prime is 121754948519. The reversal of 121754948518 is 815849457121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121754948519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4348391005 + ... + 4348391032.

It is an arithmetic number, because the mean of its divisors is an integer number (26090346114).

Almost surely, 2^121754948518 is an apocalyptic number.

121754948518 is a deficient number, since it is larger than the sum of its proper divisors (86967820394).

121754948518 is an equidigital number, since it uses as much as digits as its factorization.

121754948518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8696782046.

The product of its digits is 3225600, while the sum is 55.

The spelling of 121754948518 in words is "one hundred twenty-one billion, seven hundred fifty-four million, nine hundred forty-eight thousand, five hundred eighteen".