240642257121734 has 8 divisors (see below), whose sum is σ = 388729799965920. Its totient is φ = 111065657133096.

The previous prime is 240642257121727. The next prime is 240642257121737. The reversal of 240642257121734 is 437121752246042.

240642257121734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240642257121737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4627735713854 + ... + 4627735713905.

It is an arithmetic number, because the mean of its divisors is an integer number (48591224995740).

Almost surely, 2^{240642257121734} is an apocalyptic number.

240642257121734 is a deficient number, since it is larger than the sum of its proper divisors (148087542844186).

240642257121734 is a wasteful number, since it uses less digits than its factorization.

240642257121734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9255471427774.

The product of its (nonzero) digits is 4515840, while the sum is 50.

The spelling of 240642257121734 in words is "two hundred forty trillion, six hundred forty-two billion, two hundred fifty-seven million, one hundred twenty-one thousand, seven hundred thirty-four".