243891455082 has 32 divisors (see below), whose sum is σ = 537395408064. Its totient is φ = 73174752000.

The previous prime is 243891455053. The next prime is 243891455089. The reversal of 243891455082 is 280554198342.

It is not an unprimeable number, because it can be changed into a prime (243891455089) 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, 18287023 + ... + 18300354.

It is an arithmetic number, because the mean of its divisors is an integer number (16793606502).

Almost surely, 2^243891455082 is an apocalyptic number.

243891455082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243891455082 is an abundant number, since it is smaller than the sum of its proper divisors (293503952982).

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

243891455082 is a wasteful number, since it uses less digits than its factorization.

243891455082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36587494.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 243891455082 in words is "two hundred forty-three billion, eight hundred ninety-one million, four hundred fifty-five thousand, eighty-two".