242767251167645 has 8 divisors (see below), whose sum is σ = 299194233871704. Its totient is φ = 188964779287104.

The previous prime is 242767251167611. The next prime is 242767251167659. The reversal of 242767251167645 is 546761152767242.

It can be written as a sum of positive squares in 4 ways, for example, as 137099603774116 + 105667647393529 = 11708954^2 + 10279477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242767251167645 - 2²² = 242767246973341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656127705674 + ... + 656127706043.

It is an arithmetic number, because the mean of its divisors is an integer number (37399279233963).

Almost surely, 2^{242767251167645} is an apocalyptic number.

It is an amenable number.

242767251167645 is a deficient number, since it is larger than the sum of its proper divisors (56426982704059).

242767251167645 is a wasteful number, since it uses less digits than its factorization.

242767251167645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312255411759.

The product of its digits is 237081600, while the sum is 65.

The spelling of 242767251167645 in words is "two hundred forty-two trillion, seven hundred sixty-seven billion, two hundred fifty-one million, one hundred sixty-seven thousand, six hundred forty-five".