121755746654 has 8 divisors (see below), whose sum is σ = 182692147008. Its totient is φ = 60858364320.

The previous prime is 121755746627. The next prime is 121755746659. The reversal of 121755746654 is 456647557121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121755746596 and 121755746605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121755746659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9746702 + ... + 9759185.

It is an arithmetic number, because the mean of its divisors is an integer number (22836518376).

Almost surely, 2^121755746654 is an apocalyptic number.

121755746654 is a deficient number, since it is larger than the sum of its proper divisors (60936400354).

121755746654 is a wasteful number, since it uses less digits than its factorization.

121755746654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19509010.

The product of its digits is 7056000, while the sum is 53.

The spelling of 121755746654 in words is "one hundred twenty-one billion, seven hundred fifty-five million, seven hundred forty-six thousand, six hundred fifty-four".