121419396479 has 16 divisors (see below), whose sum is σ = 123098208000. Its totient is φ = 119753878464.

The previous prime is 121419396473. The next prime is 121419396481. The reversal of 121419396479 is 974693914121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121419396479 - 2²⁴ = 121402619263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121419396473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21453152 + ... + 21458810.

It is an arithmetic number, because the mean of its divisors is an integer number (7693638000).

Almost surely, 2^121419396479 is an apocalyptic number.

121419396479 is a deficient number, since it is larger than the sum of its proper divisors (1678811521).

121419396479 is a wasteful number, since it uses less digits than its factorization.

121419396479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782.

The product of its digits is 2939328, while the sum is 56.

The spelling of 121419396479 in words is "one hundred twenty-one billion, four hundred nineteen million, three hundred ninety-six thousand, four hundred seventy-nine".