243113952879 has 32 divisors (see below), whose sum is σ = 412920099840. Its totient is φ = 138483984096.

The previous prime is 243113952877. The next prime is 243113952881. The reversal of 243113952879 is 978259311342.

243113952879 is a `hidden beast` number, since 2 + 4 + 3 + 11 + 39 + 528 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (243113952877) and next prime (243113952881).

It is not a de Polignac number, because 243113952879 - 2¹ = 243113952877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113952871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1968979 + ... + 2088804.

It is an arithmetic number, because the mean of its divisors is an integer number (12903753120).

Almost surely, 2^243113952879 is an apocalyptic number.

243113952879 is a deficient number, since it is larger than the sum of its proper divisors (169806146961).

243113952879 is a wasteful number, since it uses less digits than its factorization.

243113952879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058116 (or 4058110 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 243113952879 in words is "two hundred forty-three billion, one hundred thirteen million, nine hundred fifty-two thousand, eight hundred seventy-nine".