7740241242645 has 8 divisors (see below), whose sum is σ = 12384385988256. Its totient is φ = 4128128662736.

The previous prime is 7740241242577. The next prime is 7740241242649. The reversal of 7740241242645 is 5462421420477.

It is a happy number.

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 7740241242645 - 2¹¹ = 7740241240597 is a prime.

It is a super-2 number, since 2×7740241242645² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7740241242594 and 7740241242603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7740241242649) 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, 258008041407 + ... + 258008041436.

It is an arithmetic number, because the mean of its divisors is an integer number (1548048248532).

Almost surely, 2^{7740241242645} is an apocalyptic number.

It is an amenable number.

7740241242645 is a deficient number, since it is larger than the sum of its proper divisors (4644144745611).

7740241242645 is a wasteful number, since it uses less digits than its factorization.

7740241242645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516016082851.

The product of its (nonzero) digits is 3010560, while the sum is 48.

The spelling of 7740241242645 in words is "seven trillion, seven hundred forty billion, two hundred forty-one million, two hundred forty-two thousand, six hundred forty-five".