9977888233 has 2 divisors, whose sum is σ = 9977888234. Its totient is φ = 9977888232.

The previous prime is 9977888213. The next prime is 9977888281. The reversal of 9977888233 is 3328887799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9231942889 + 745945344 = 96083^2 + 27312^2 .

It is a cyclic number.

It is not a de Polignac number, because 9977888233 - 2³³ = 1387953641 is a prime.

It is not a weakly prime, because it can be changed into another prime (9977888213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988944116 + 4988944117.

It is an arithmetic number, because the mean of its divisors is an integer number (4988944117).

Almost surely, 2^9977888233 is an apocalyptic number.

It is an amenable number.

9977888233 is a deficient number, since it is larger than the sum of its proper divisors (1).

9977888233 is an equidigital number, since it uses as much as digits as its factorization.

9977888233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 64.

The square root of 9977888233 is about 99889.3799810570. The cubic root of 9977888233 is about 2152.8455729200.

The spelling of 9977888233 in words is "nine billion, nine hundred seventy-seven million, eight hundred eighty-eight thousand, two hundred thirty-three".