242391903829 has 2 divisors, whose sum is σ = 242391903830. Its totient is φ = 242391903828.

The previous prime is 242391903797. The next prime is 242391903851. The reversal of 242391903829 is 928309193242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198650272804 + 43741631025 = 445702^2 + 209145^2 .

It is a cyclic number.

It is not a de Polignac number, because 242391903829 - 2⁵ = 242391903797 is a prime.

It is a super-2 number, since 2×242391903829² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242391903629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121195951914 + 121195951915.

It is an arithmetic number, because the mean of its divisors is an integer number (121195951915).

Almost surely, 2^242391903829 is an apocalyptic number.

It is an amenable number.

242391903829 is a deficient number, since it is larger than the sum of its proper divisors (1).

242391903829 is an equidigital number, since it uses as much as digits as its factorization.

242391903829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 242391903829 in words is "two hundred forty-two billion, three hundred ninety-one million, nine hundred three thousand, eight hundred twenty-nine".