77597382101 has 4 divisors (see below), whose sum is σ = 78660360012. Its totient is φ = 76534404192.

The previous prime is 77597382047. The next prime is 77597382131. The reversal of 77597382101 is 10128379577.

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 52623901201 + 24973480900 = 229399^2 + 158030^2 .

It is a cyclic number.

It is not a de Polignac number, because 77597382101 - 2¹⁴ = 77597365717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77597382101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77597382131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531488846 + ... + 531488991.

It is an arithmetic number, because the mean of its divisors is an integer number (19665090003).

Almost surely, 2^77597382101 is an apocalyptic number.

It is an amenable number.

77597382101 is a deficient number, since it is larger than the sum of its proper divisors (1062977911).

77597382101 is a wasteful number, since it uses less digits than its factorization.

77597382101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062977910.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 77597382101 in words is "seventy-seven billion, five hundred ninety-seven million, three hundred eighty-two thousand, one hundred one".