77349183349 has 2 divisors, whose sum is σ = 77349183350. Its totient is φ = 77349183348.

The previous prime is 77349183347. The next prime is 77349183413. The reversal of 77349183349 is 94338194377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56319833124 + 21029350225 = 237318^2 + 145015^2 .

It is a cyclic number.

It is not a de Polignac number, because 77349183349 - 2¹ = 77349183347 is a prime.

Together with 77349183347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 77349183293 and 77349183302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77349183343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38674591674 + 38674591675.

It is an arithmetic number, because the mean of its divisors is an integer number (38674591675).

Almost surely, 2^77349183349 is an apocalyptic number.

It is an amenable number.

77349183349 is a deficient number, since it is larger than the sum of its proper divisors (1).

77349183349 is an equidigital number, since it uses as much as digits as its factorization.

77349183349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 58.

The spelling of 77349183349 in words is "seventy-seven billion, three hundred forty-nine million, one hundred eighty-three thousand, three hundred forty-nine".