7749240413447 has 4 divisors (see below), whose sum is σ = 8345335829880. Its totient is φ = 7153144997016.

The previous prime is 7749240413371. The next prime is 7749240413483. The reversal of 7749240413447 is 7443140429477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7749240413447 - 2¹⁶ = 7749240347911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7749240413392 and 7749240413401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7749240413347) 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, 298047708197 + ... + 298047708222.

It is an arithmetic number, because the mean of its divisors is an integer number (2086333957470).

Almost surely, 2^{7749240413447} is an apocalyptic number.

7749240413447 is a deficient number, since it is larger than the sum of its proper divisors (596095416433).

7749240413447 is a wasteful number, since it uses less digits than its factorization.

7749240413447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596095416432.

The product of its (nonzero) digits is 18966528, while the sum is 56.

The spelling of 7749240413447 in words is "seven trillion, seven hundred forty-nine billion, two hundred forty million, four hundred thirteen thousand, four hundred forty-seven".