7744064852857 has 4 divisors (see below), whose sum is σ = 7837366839120. Its totient is φ = 7650762866596.

The previous prime is 7744064852831. The next prime is 7744064852891. The reversal of 7744064852857 is 7582584604477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7744064852857 - 2¹⁹ = 7744064328569 is a prime.

It is a super-2 number, since 2×7744064852857² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7744064852792 and 7744064852801.

It is not an unprimeable number, because it can be changed into a prime (7744064853857) 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, 46650993007 + ... + 46650993172.

It is an arithmetic number, because the mean of its divisors is an integer number (1959341709780).

Almost surely, 2^{7744064852857} is an apocalyptic number.

It is an amenable number.

7744064852857 is a deficient number, since it is larger than the sum of its proper divisors (93301986263).

7744064852857 is an equidigital number, since it uses as much as digits as its factorization.

7744064852857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93301986262.

The product of its (nonzero) digits is 421478400, while the sum is 67.

The spelling of 7744064852857 in words is "seven trillion, seven hundred forty-four billion, sixty-four million, eight hundred fifty-two thousand, eight hundred fifty-seven".