787148257457 has 2 divisors, whose sum is σ = 787148257458. Its totient is φ = 787148257456.

The previous prime is 787148257429. The next prime is 787148257459. The reversal of 787148257457 is 754752841787.

787148257457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769481594401 + 17666663056 = 877201^2 + 132916^2 .

It is a cyclic number.

It is not a de Polignac number, because 787148257457 - 2¹⁴ = 787148241073 is a prime.

It is a super-2 number, since 2×787148257457² (a number of 25 digits) contains 22 as substring.

Together with 787148257459, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 787148257393 and 787148257402.

It is not a weakly prime, because it can be changed into another prime (787148257459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393574128728 + 393574128729.

It is an arithmetic number, because the mean of its divisors is an integer number (393574128729).

Almost surely, 2^787148257457 is an apocalyptic number.

It is an amenable number.

787148257457 is a deficient number, since it is larger than the sum of its proper divisors (1).

787148257457 is an equidigital number, since it uses as much as digits as its factorization.

787148257457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122931200, while the sum is 65.

The spelling of 787148257457 in words is "seven hundred eighty-seven billion, one hundred forty-eight million, two hundred fifty-seven thousand, four hundred fifty-seven".