77252007313 has 4 divisors (see below), whose sum is σ = 83194469428. Its totient is φ = 71309545200.

The previous prime is 77252007281. The next prime is 77252007317. The reversal of 77252007313 is 31370025277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50004562689 + 27247444624 = 223617^2 + 165068^2 .

It is a cyclic number.

It is not a de Polignac number, because 77252007313 - 2⁵ = 77252007281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77252007317) 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 in 3 ways as a sum of consecutive naturals, for example, 2971231038 + ... + 2971231063.

It is an arithmetic number, because the mean of its divisors is an integer number (20798617357).

Almost surely, 2^77252007313 is an apocalyptic number.

It is an amenable number.

77252007313 is a deficient number, since it is larger than the sum of its proper divisors (5942462115).

77252007313 is a wasteful number, since it uses less digits than its factorization.

77252007313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942462114.

The product of its (nonzero) digits is 61740, while the sum is 37.

The spelling of 77252007313 in words is "seventy-seven billion, two hundred fifty-two million, seven thousand, three hundred thirteen".