9977765432099 has 2 divisors, whose sum is σ = 9977765432100. Its totient is φ = 9977765432098.

The previous prime is 9977765432093. The next prime is 9977765432113. The reversal of 9977765432099 is 9902345677799.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9977765432099 is a prime.

It is a super-3 number, since 3×9977765432099³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9977765432093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988882716049 + 4988882716050.

It is an arithmetic number, because the mean of its divisors is an integer number (4988882716050).

Almost surely, 2^{9977765432099} is an apocalyptic number.

9977765432099 is a deficient number, since it is larger than the sum of its proper divisors (1).

9977765432099 is an equidigital number, since it uses as much as digits as its factorization.

9977765432099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620304560, while the sum is 77.

The spelling of 9977765432099 in words is "nine trillion, nine hundred seventy-seven billion, seven hundred sixty-five million, four hundred thirty-two thousand, ninety-nine".