76313500649 has 2 divisors, whose sum is σ = 76313500650. Its totient is φ = 76313500648.

The previous prime is 76313500621. The next prime is 76313500751. The reversal of 76313500649 is 94600531367.

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., 74055825424 + 2257675225 = 272132^2 + 47515^2 .

It is a cyclic number.

It is not a de Polignac number, because 76313500649 - 2¹⁶ = 76313435113 is a prime.

It is a super-3 number, since 3×76313500649³ (a number of 34 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76313506649) 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, 38156750324 + 38156750325.

It is an arithmetic number, because the mean of its divisors is an integer number (38156750325).

Almost surely, 2^76313500649 is an apocalyptic number.

It is an amenable number.

76313500649 is a deficient number, since it is larger than the sum of its proper divisors (1).

76313500649 is an equidigital number, since it uses as much as digits as its factorization.

76313500649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 76313500649 in words is "seventy-six billion, three hundred thirteen million, five hundred thousand, six hundred forty-nine".