74120121057044 has 24 divisors (see below), whose sum is σ = 130607998821888. Its totient is φ = 36803808943200.

The previous prime is 74120121057041. The next prime is 74120121057061. The reversal of 74120121057044 is 44075012102147.

It is a junction number, because it is equal to n+sod(n) for n = 74120121056989 and 74120121057007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74120121057041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31226432 + ... + 33516119.

It is an arithmetic number, because the mean of its divisors is an integer number (5441999950912).

Almost surely, 2^{74120121057044} is an apocalyptic number.

It is an amenable number.

74120121057044 is a deficient number, since it is larger than the sum of its proper divisors (56487877764844).

74120121057044 is a wasteful number, since it uses less digits than its factorization.

74120121057044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64744535 (or 64744533 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 74120121057044 in words is "seventy-four trillion, one hundred twenty billion, one hundred twenty-one million, fifty-seven thousand, forty-four".