235816992293988 has 192 divisors, whose sum is σ = 666512324352000. Its totient is φ = 63389659207680.

The previous prime is 235816992293863. The next prime is 235816992294047. The reversal of 235816992293988 is 889392299618532.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a self number, because there is not a number n which added to its sum of digits gives 235816992293988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1280958108 + ... + 1281142188.

It is an arithmetic number, because the mean of its divisors is an integer number (3471418356000).

Almost surely, 2^{235816992293988} is an apocalyptic number.

235816992293988 is a gapful number since it is divisible by the number (28) 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 235816992293988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333256162176000).

235816992293988 is an abundant number, since it is smaller than the sum of its proper divisors (430695332058012).

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

235816992293988 is a wasteful number, since it uses less digits than its factorization.

235816992293988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189650 (or 189648 counting only the distinct ones).

The product of its digits is 7255941120, while the sum is 84.

The spelling of 235816992293988 in words is "two hundred thirty-five trillion, eight hundred sixteen billion, nine hundred ninety-two million, two hundred ninety-three thousand, nine hundred eighty-eight".