242189741805 has 64 divisors (see below), whose sum is σ = 426962866176. Its totient is φ = 116254112000.

The previous prime is 242189741791. The next prime is 242189741813. The reversal of 242189741805 is 508147981242.

It is not a de Polignac number, because 242189741805 - 2²⁸ = 241921306349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9303067 + ... + 9329063.

It is an arithmetic number, because the mean of its divisors is an integer number (6671294784).

Almost surely, 2^242189741805 is an apocalyptic number.

It is an amenable number.

242189741805 is a deficient number, since it is larger than the sum of its proper divisors (184773124371).

242189741805 is a wasteful number, since it uses less digits than its factorization.

242189741805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26578.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 242189741805 in words is "two hundred forty-two billion, one hundred eighty-nine million, seven hundred forty-one thousand, eight hundred five".