242450351551 has 2 divisors, whose sum is σ = 242450351552. Its totient is φ = 242450351550.

The previous prime is 242450351527. The next prime is 242450351581. The reversal of 242450351551 is 155153054242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242450351551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242450351551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242450351581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121225175775 + 121225175776.

It is an arithmetic number, because the mean of its divisors is an integer number (121225175776).

Almost surely, 2^242450351551 is an apocalyptic number.

242450351551 is a deficient number, since it is larger than the sum of its proper divisors (1).

242450351551 is an equidigital number, since it uses as much as digits as its factorization.

242450351551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 242450351551 in words is "two hundred forty-two billion, four hundred fifty million, three hundred fifty-one thousand, five hundred fifty-one".