242121673965 has 8 divisors (see below), whose sum is σ = 387394678368. Its totient is φ = 129131559440.

The previous prime is 242121673901. The next prime is 242121673967. The reversal of 242121673965 is 569376121242.

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

It is not a de Polignac number, because 242121673965 - 2⁶ = 242121673901 is a prime.

It is a super-2 number, since 2×242121673965² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242121673967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070722451 + ... + 8070722480.

It is an arithmetic number, because the mean of its divisors is an integer number (48424334796).

Almost surely, 2^242121673965 is an apocalyptic number.

It is an amenable number.

242121673965 is a deficient number, since it is larger than the sum of its proper divisors (145273004403).

242121673965 is a wasteful number, since it uses less digits than its factorization.

242121673965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141444939.

The product of its digits is 1088640, while the sum is 48.

The spelling of 242121673965 in words is "two hundred forty-two billion, one hundred twenty-one million, six hundred seventy-three thousand, nine hundred sixty-five".