121609974046 has 16 divisors (see below), whose sum is σ = 199531659888. Its totient is φ = 55129060800.

The previous prime is 121609974041. The next prime is 121609974131. The reversal of 121609974046 is 640479906121.

It is a super-3 number, since 3×121609974046³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121609974041) 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, 7401615 + ... + 7418026.

It is an arithmetic number, because the mean of its divisors is an integer number (12470728743).

Almost surely, 2^121609974046 is an apocalyptic number.

121609974046 is a deficient number, since it is larger than the sum of its proper divisors (77921685842).

121609974046 is a wasteful number, since it uses less digits than its factorization.

121609974046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820027.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 121609974046 in words is "one hundred twenty-one billion, six hundred nine million, nine hundred seventy-four thousand, forty-six".