242623155634507 has 2 divisors, whose sum is σ = 242623155634508. Its totient is φ = 242623155634506.

The previous prime is 242623155634493. The next prime is 242623155634537. The reversal of 242623155634507 is 705436551326242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242623155634507 is a prime.

It is not a weakly prime, because it can be changed into another prime (242623155634537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121311577817253 + 121311577817254.

It is an arithmetic number, because the mean of its divisors is an integer number (121311577817254).

Almost surely, 2^{242623155634507} is an apocalyptic number.

242623155634507 is a deficient number, since it is larger than the sum of its proper divisors (1).

242623155634507 is an equidigital number, since it uses as much as digits as its factorization.

242623155634507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288000, while the sum is 55.

The spelling of 242623155634507 in words is "two hundred forty-two trillion, six hundred twenty-three billion, one hundred fifty-five million, six hundred thirty-four thousand, five hundred seven".