77101604953 has 2 divisors, whose sum is σ = 77101604954. Its totient is φ = 77101604952.

The previous prime is 77101604821. The next prime is 77101605017. The reversal of 77101604953 is 35940610177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39157681689 + 37943923264 = 197883^2 + 194792^2 .

It is a cyclic number.

It is not a de Polignac number, because 77101604953 - 2²¹ = 77099507801 is a prime.

It is not a weakly prime, because it can be changed into another prime (77101604453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38550802476 + 38550802477.

It is an arithmetic number, because the mean of its divisors is an integer number (38550802477).

Almost surely, 2^77101604953 is an apocalyptic number.

It is an amenable number.

77101604953 is a deficient number, since it is larger than the sum of its proper divisors (1).

77101604953 is an equidigital number, since it uses as much as digits as its factorization.

77101604953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 77101604953 in words is "seventy-seven billion, one hundred one million, six hundred four thousand, nine hundred fifty-three".