77246600797 has 4 divisors (see below), whose sum is σ = 77277839260. Its totient is φ = 77215362336.

The previous prime is 77246600741. The next prime is 77246600801. The reversal of 77246600797 is 79700664277.

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 44097480036 + 33149120761 = 209994^2 + 182069^2 .

It is a cyclic number.

It is not a de Polignac number, because 77246600797 - 2¹¹ = 77246598749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77246600707) 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 in 3 ways as a sum of consecutive naturals, for example, 15615522 + ... + 15620467.

It is an arithmetic number, because the mean of its divisors is an integer number (19319459815).

Almost surely, 2^77246600797 is an apocalyptic number.

It is an amenable number.

77246600797 is a deficient number, since it is larger than the sum of its proper divisors (31238463).

77246600797 is a wasteful number, since it uses less digits than its factorization.

77246600797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31238462.

The product of its (nonzero) digits is 6223392, while the sum is 55.

The spelling of 77246600797 in words is "seventy-seven billion, two hundred forty-six million, six hundred thousand, seven hundred ninety-seven".