121575776504 has 128 divisors (see below), whose sum is σ = 286720560000. Its totient is φ = 48022797312.

The previous prime is 121575776473. The next prime is 121575776579. The reversal of 121575776504 is 405677575121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27572252 + ... + 27576660.

It is an arithmetic number, because the mean of its divisors is an integer number (2240004375).

Almost surely, 2^121575776504 is an apocalyptic number.

121575776504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121575776504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143360280000).

121575776504 is an abundant number, since it is smaller than the sum of its proper divisors (165144783496).

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

121575776504 is a wasteful number, since it uses less digits than its factorization.

121575776504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 50.

The spelling of 121575776504 in words is "one hundred twenty-one billion, five hundred seventy-five million, seven hundred seventy-six thousand, five hundred four".