99396230777 has 2 divisors, whose sum is σ = 99396230778. Its totient is φ = 99396230776.

The previous prime is 99396230749. The next prime is 99396230803. The reversal of 99396230777 is 77703269399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81329913856 + 18066316921 = 285184^2 + 134411^2 .

It is a cyclic number.

It is not a de Polignac number, because 99396230777 - 2¹² = 99396226681 is a prime.

It is a super-2 number, since 2×99396230777² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99396230477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49698115388 + 49698115389.

It is an arithmetic number, because the mean of its divisors is an integer number (49698115389).

Almost surely, 2^99396230777 is an apocalyptic number.

It is an amenable number.

99396230777 is a deficient number, since it is larger than the sum of its proper divisors (1).

99396230777 is an equidigital number, since it uses as much as digits as its factorization.

99396230777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27005076, while the sum is 62.

The spelling of 99396230777 in words is "ninety-nine billion, three hundred ninety-six million, two hundred thirty thousand, seven hundred seventy-seven".