709750664551 has 2 divisors, whose sum is σ = 709750664552. Its totient is φ = 709750664550.

The previous prime is 709750664531. The next prime is 709750664573. The reversal of 709750664551 is 155466057907.

It is a weak prime.

It is an emirp because it is prime and its reverse (155466057907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 709750664551 - 2²⁵ = 709717110119 is a prime.

It is a super-2 number, since 2×709750664551² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 709750664492 and 709750664501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (709750664521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354875332275 + 354875332276.

It is an arithmetic number, because the mean of its divisors is an integer number (354875332276).

Almost surely, 2^709750664551 is an apocalyptic number.

709750664551 is a deficient number, since it is larger than the sum of its proper divisors (1).

709750664551 is an equidigital number, since it uses as much as digits as its factorization.

709750664551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 709750664551 in words is "seven hundred nine billion, seven hundred fifty million, six hundred sixty-four thousand, five hundred fifty-one".