77135741329 has 2 divisors, whose sum is σ = 77135741330. Its totient is φ = 77135741328.

The previous prime is 77135741303. The next prime is 77135741381. The reversal of 77135741329 is 92314753177.

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., 56869371729 + 20266369600 = 238473^2 + 142360^2 .

It is a cyclic number.

It is not a de Polignac number, because 77135741329 - 2⁵ = 77135741297 is a prime.

It is not a weakly prime, because it can be changed into another prime (77135741029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38567870664 + 38567870665.

It is an arithmetic number, because the mean of its divisors is an integer number (38567870665).

Almost surely, 2^77135741329 is an apocalyptic number.

It is an amenable number.

77135741329 is a deficient number, since it is larger than the sum of its proper divisors (1).

77135741329 is an equidigital number, since it uses as much as digits as its factorization.

77135741329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 49.

The spelling of 77135741329 in words is "seventy-seven billion, one hundred thirty-five million, seven hundred forty-one thousand, three hundred twenty-nine".