751716550681 has 2 divisors, whose sum is σ = 751716550682. Its totient is φ = 751716550680.

The previous prime is 751716550589. The next prime is 751716550699. The reversal of 751716550681 is 186055617157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509938810000 + 241777740681 = 714100^2 + 491709^2 .

It is a cyclic number.

It is not a de Polignac number, because 751716550681 - 2¹⁷ = 751716419609 is a prime.

It is a super-2 number, since 2×751716550681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (751716550381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375858275340 + 375858275341.

It is an arithmetic number, because the mean of its divisors is an integer number (375858275341).

Almost surely, 2^751716550681 is an apocalyptic number.

It is an amenable number.

751716550681 is a deficient number, since it is larger than the sum of its proper divisors (1).

751716550681 is an equidigital number, since it uses as much as digits as its factorization.

751716550681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 52.

The spelling of 751716550681 in words is "seven hundred fifty-one billion, seven hundred sixteen million, five hundred fifty thousand, six hundred eighty-one".