243215766043772 has 6 divisors (see below), whose sum is σ = 425627590576608. Its totient is φ = 121607883021884.

The previous prime is 243215766043751. The next prime is 243215766043781. The reversal of 243215766043772 is 277340667512342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30401970755468 + ... + 30401970755475.

It is an arithmetic number, because the mean of its divisors is an integer number (70937931762768).

Almost surely, 2^{243215766043772} is an apocalyptic number.

It is an amenable number.

243215766043772 is a deficient number, since it is larger than the sum of its proper divisors (182411824532836).

243215766043772 is a wasteful number, since it uses less digits than its factorization.

243215766043772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60803941510947 (or 60803941510945 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 59.

The spelling of 243215766043772 in words is "two hundred forty-three trillion, two hundred fifteen billion, seven hundred sixty-six million, forty-three thousand, seven hundred seventy-two".