235643372140 has 48 divisors (see below), whose sum is σ = 548987362560. Its totient is φ = 84236146880.

The previous prime is 235643372113. The next prime is 235643372149. The reversal of 235643372140 is 41273346532.

235643372140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 235643372093 and 235643372102.

It is not an unprimeable number, because it can be changed into a prime (235643372149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9064192 + ... + 9090151.

It is an arithmetic number, because the mean of its divisors is an integer number (11437236720).

Almost surely, 2^235643372140 is an apocalyptic number.

235643372140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235643372140 is an abundant number, since it is smaller than the sum of its proper divisors (313343990420).

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

235643372140 is a wasteful number, since it uses less digits than its factorization.

235643372140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154422 (or 18154420 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 235643372140 in words is "two hundred thirty-five billion, six hundred forty-three million, three hundred seventy-two thousand, one hundred forty".