243243464217026 has 96 divisors (see below), whose sum is σ = 452276729134848. Its totient is φ = 96069571153920.

The previous prime is 243243464216983. The next prime is 243243464217041. The reversal of 243243464217026 is 620712464342342.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17771854355 + ... + 17771868041.

It is an arithmetic number, because the mean of its divisors is an integer number (4711215928488).

Almost surely, 2^{243243464217026} is an apocalyptic number.

243243464217026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

243243464217026 is a deficient number, since it is larger than the sum of its proper divisors (209033264917822).

243243464217026 is a wasteful number, since it uses less digits than its factorization.

243243464217026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556 (or 25543 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 50.

The spelling of 243243464217026 in words is "two hundred forty-three trillion, two hundred forty-three billion, four hundred sixty-four million, two hundred seventeen thousand, twenty-six".