7649418315697 has 8 divisors (see below), whose sum is σ = 7662595068072. Its totient is φ = 7636243056000.

The previous prime is 7649418315691. The next prime is 7649418315733. The reversal of 7649418315697 is 7965138149467.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 569966111521 + 7079452204176 = 754961^2 + 2660724^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7649418315697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7649418315691) 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, 10139547 + ... + 10867807.

It is an arithmetic number, because the mean of its divisors is an integer number (957824383509).

Almost surely, 2^{7649418315697} is an apocalyptic number.

It is an amenable number.

7649418315697 is a deficient number, since it is larger than the sum of its proper divisors (13176752375).

7649418315697 is a wasteful number, since it uses less digits than its factorization.

7649418315697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746339.

The product of its digits is 274337280, while the sum is 70.

The spelling of 7649418315697 in words is "seven trillion, six hundred forty-nine billion, four hundred eighteen million, three hundred fifteen thousand, six hundred ninety-seven".