121886860480 has 448 divisors, whose sum is σ = 383433523200. Its totient is φ = 35752734720.

The previous prime is 121886860471. The next prime is 121886860519. The reversal of 121886860480 is 84068688121.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-3 number, since 3×121886860480³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78181941 + ... + 78183499.

It is an arithmetic number, because the mean of its divisors is an integer number (855878400).

Almost surely, 2^121886860480 is an apocalyptic number.

121886860480 is a gapful number since it is divisible by the number (10) 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 121886860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191716761600).

121886860480 is an abundant number, since it is smaller than the sum of its proper divisors (261546662720).

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

121886860480 is a wasteful number, since it uses less digits than its factorization.

121886860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 52.

The spelling of 121886860480 in words is "one hundred twenty-one billion, eight hundred eighty-six million, eight hundred sixty thousand, four hundred eighty".