77041805153 has 2 divisors, whose sum is σ = 77041805154. Its totient is φ = 77041805152.

The previous prime is 77041805119. The next prime is 77041805161. The reversal of 77041805153 is 35150814077.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39470960929 + 37570844224 = 198673^2 + 193832^2 .

It is a cyclic number.

It is not a de Polignac number, because 77041805153 - 2¹⁰ = 77041804129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77041805153.

It is not a weakly prime, because it can be changed into another prime (77041805053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38520902576 + 38520902577.

It is an arithmetic number, because the mean of its divisors is an integer number (38520902577).

Almost surely, 2^77041805153 is an apocalyptic number.

It is an amenable number.

77041805153 is a deficient number, since it is larger than the sum of its proper divisors (1).

77041805153 is an equidigital number, since it uses as much as digits as its factorization.

77041805153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 77041805153 in words is "seventy-seven billion, forty-one million, eight hundred five thousand, one hundred fifty-three".