242887347499 has 4 divisors (see below), whose sum is σ = 242889967936. Its totient is φ = 242884727064.

The previous prime is 242887347487. The next prime is 242887347503. The reversal of 242887347499 is 994743788242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242887347499 - 2⁷ = 242887347371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242887347449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165884 + ... + 1358329.

It is an arithmetic number, because the mean of its divisors is an integer number (60722491984).

Almost surely, 2^242887347499 is an apocalyptic number.

242887347499 is a deficient number, since it is larger than the sum of its proper divisors (2620437).

242887347499 is an equidigital number, since it uses as much as digits as its factorization.

242887347499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620436.

The product of its digits is 195084288, while the sum is 67.

The spelling of 242887347499 in words is "two hundred forty-two billion, eight hundred eighty-seven million, three hundred forty-seven thousand, four hundred ninety-nine".