761860291393 has 2 divisors, whose sum is σ = 761860291394. Its totient is φ = 761860291392.

The previous prime is 761860291363. The next prime is 761860291433. The reversal of 761860291393 is 393192068167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 560863192464 + 200997098929 = 748908^2 + 448327^2 .

It is a cyclic number.

It is not a de Polignac number, because 761860291393 - 2²¹ = 761858194241 is a prime.

It is a super-2 number, since 2×761860291393² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (761860291333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380930145696 + 380930145697.

It is an arithmetic number, because the mean of its divisors is an integer number (380930145697).

Almost surely, 2^761860291393 is an apocalyptic number.

It is an amenable number.

761860291393 is a deficient number, since it is larger than the sum of its proper divisors (1).

761860291393 is an equidigital number, since it uses as much as digits as its factorization.

761860291393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 761860291393 in words is "seven hundred sixty-one billion, eight hundred sixty million, two hundred ninety-one thousand, three hundred ninety-three".