243214370376540 has 48 divisors (see below), whose sum is σ = 681020915920800. Its totient is φ = 64855196017920.

The previous prime is 243214370376493. The next prime is 243214370376547. The reversal of 243214370376540 is 45673073412342.

243214370376540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243214370376547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59551315 + ... + 63504234.

It is an arithmetic number, because the mean of its divisors is an integer number (14187935748350).

Almost surely, 2^{243214370376540} is an apocalyptic number.

243214370376540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243214370376540 is an abundant number, since it is smaller than the sum of its proper divisors (437806545544260).

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

243214370376540 is a wasteful number, since it uses less digits than its factorization.

243214370376540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123088502 (or 123088500 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 51.

The spelling of 243214370376540 in words is "two hundred forty-three trillion, two hundred fourteen billion, three hundred seventy million, three hundred seventy-six thousand, five hundred forty".