7677551373257 has 2 divisors, whose sum is σ = 7677551373258. Its totient is φ = 7677551373256.

The previous prime is 7677551373251. The next prime is 7677551373343. The reversal of 7677551373257 is 7523731557767.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7641553520896 + 35997852361 = 2764336^2 + 189731^2 .

It is a cyclic number.

It is not a de Polignac number, because 7677551373257 - 2⁴ = 7677551373241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7677551373193 and 7677551373202.

It is not a weakly prime, because it can be changed into another prime (7677551373251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3838775686628 + 3838775686629.

It is an arithmetic number, because the mean of its divisors is an integer number (3838775686629).

Almost surely, 2^{7677551373257} is an apocalyptic number.

It is an amenable number.

7677551373257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7677551373257 is an equidigital number, since it uses as much as digits as its factorization.

7677551373257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226894500, while the sum is 65.

The spelling of 7677551373257 in words is "seven trillion, six hundred seventy-seven billion, five hundred fifty-one million, three hundred seventy-three thousand, two hundred fifty-seven".