121474907829 has 96 divisors (see below), whose sum is σ = 204574616064. Its totient is φ = 68779376640.

The previous prime is 121474907777. The next prime is 121474907833. The reversal of 121474907829 is 928709474121.

121474907829 is a `hidden beast` number, since 1 + 2 + 1 + 474 + 90 + 7 + 82 + 9 = 666.

It is not a de Polignac number, because 121474907829 - 2⁸ = 121474907573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121474907839) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 9117877 + ... + 9131189.

It is an arithmetic number, because the mean of its divisors is an integer number (2130985584).

Almost surely, 2^121474907829 is an apocalyptic number.

It is an amenable number.

121474907829 is a deficient number, since it is larger than the sum of its proper divisors (83099708235).

121474907829 is a wasteful number, since it uses less digits than its factorization.

121474907829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467 (or 13464 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 121474907829 in words is "one hundred twenty-one billion, four hundred seventy-four million, nine hundred seven thousand, eight hundred twenty-nine".