7742617849 has 8 divisors (see below), whose sum is σ = 7922164320. Its totient is φ = 7564682016.

The previous prime is 7742617829. The next prime is 7742617873. The reversal of 7742617849 is 9487162477.

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 7742617849 - 2²³ = 7734229241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7742617849.

It is not an unprimeable number, because it can be changed into a prime (7742617829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392932 + ... + 412165.

It is an arithmetic number, because the mean of its divisors is an integer number (990270540).

Almost surely, 2^7742617849 is an apocalyptic number.

It is an amenable number.

7742617849 is a deficient number, since it is larger than the sum of its proper divisors (179546471).

7742617849 is a wasteful number, since it uses less digits than its factorization.

7742617849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805319.

The product of its digits is 4741632, while the sum is 55.

The square root of 7742617849 is about 87992.1465188797. The cubic root of 7742617849 is about 1978.3172664445.

The spelling of 7742617849 in words is "seven billion, seven hundred forty-two million, six hundred seventeen thousand, eight hundred forty-nine".