121079837508 has 72 divisors (see below), whose sum is σ = 334846213632. Its totient is φ = 33941509056.

The previous prime is 121079837471. The next prime is 121079837533. The reversal of 121079837508 is 805738970121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1911460 + ... + 1973787.

It is an arithmetic number, because the mean of its divisors is an integer number (4650641856).

Almost surely, 2^121079837508 is an apocalyptic number.

It is an amenable number.

121079837508 is an abundant number, since it is smaller than the sum of its proper divisors (213766376124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121079837508 is a wasteful number, since it uses less digits than its factorization.

121079837508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885321 (or 3885312 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 121079837508 in words is "one hundred twenty-one billion, seventy-nine million, eight hundred thirty-seven thousand, five hundred eight".