188464956377 has 2 divisors, whose sum is σ = 188464956378. Its totient is φ = 188464956376.

The previous prime is 188464956349. The next prime is 188464956467. The reversal of 188464956377 is 773659464881.

It is a happy number.

188464956377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187814757376 + 650199001 = 433376^2 + 25499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188464956377 is a prime.

It is a super-2 number, since 2×188464956377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188464956577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94232478188 + 94232478189.

It is an arithmetic number, because the mean of its divisors is an integer number (94232478189).

Almost surely, 2^188464956377 is an apocalyptic number.

It is an amenable number.

188464956377 is a deficient number, since it is larger than the sum of its proper divisors (1).

188464956377 is an equidigital number, since it uses as much as digits as its factorization.

188464956377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243855360, while the sum is 68.

The spelling of 188464956377 in words is "one hundred eighty-eight billion, four hundred sixty-four million, nine hundred fifty-six thousand, three hundred seventy-seven".