243091280028 has 48 divisors (see below), whose sum is σ = 587126292480. Its totient is φ = 78189042624.

The previous prime is 243091279973. The next prime is 243091280039. The reversal of 243091280028 is 820082190342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368701 + ... + 788747.

It is an arithmetic number, because the mean of its divisors is an integer number (12231797760).

Almost surely, 2^243091280028 is an apocalyptic number.

It is an amenable number.

243091280028 is an abundant number, since it is smaller than the sum of its proper divisors (344035012452).

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

243091280028 is a wasteful number, since it uses less digits than its factorization.

243091280028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421746 (or 421744 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 243091280028 in words is "two hundred forty-three billion, ninety-one million, two hundred eighty thousand, twenty-eight".