121735638074 has 48 divisors (see below), whose sum is σ = 195864480000. Its totient is φ = 56725783488.

The previous prime is 121735638071. The next prime is 121735638091. The reversal of 121735638074 is 470836537121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121735638071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50743127 + ... + 50745525.

It is an arithmetic number, because the mean of its divisors is an integer number (4080510000).

Almost surely, 2^121735638074 is an apocalyptic number.

121735638074 is a deficient number, since it is larger than the sum of its proper divisors (74128841926).

121735638074 is a wasteful number, since it uses less digits than its factorization.

121735638074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 121735638074 in words is "one hundred twenty-one billion, seven hundred thirty-five million, six hundred thirty-eight thousand, seventy-four".