235982121209880 has 128 divisors (see below), whose sum is σ = 749739948523200. Its totient is φ = 59215058665472.

The previous prime is 235982121209839. The next prime is 235982121209911. The reversal of 235982121209880 is 88902121289532.

It is a super-2 number, since 2×235982121209880² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1328607 + ... + 21765326.

Almost surely, 2^{235982121209880} is an apocalyptic number.

235982121209880 is a gapful number since it is divisible by the number (20) 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 235982121209880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374869974261600).

235982121209880 is an abundant number, since it is smaller than the sum of its proper divisors (513757827313320).

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

235982121209880 is a wasteful number, since it uses less digits than its factorization.

235982121209880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23098973 (or 23098969 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 235982121209880 in words is "two hundred thirty-five trillion, nine hundred eighty-two billion, one hundred twenty-one million, two hundred nine thousand, eight hundred eighty".