187435376497 has 2 divisors, whose sum is σ = 187435376498. Its totient is φ = 187435376496.

The previous prime is 187435376459. The next prime is 187435376533. The reversal of 187435376497 is 794673534781.

It is a happy number.

187435376497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115842206736 + 71593169761 = 340356^2 + 267569^2 .

It is a cyclic number.

It is not a de Polignac number, because 187435376497 - 2⁷ = 187435376369 is a prime.

It is not a weakly prime, because it can be changed into another prime (187435376417) 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, 93717688248 + 93717688249.

It is an arithmetic number, because the mean of its divisors is an integer number (93717688249).

Almost surely, 2^187435376497 is an apocalyptic number.

It is an amenable number.

187435376497 is a deficient number, since it is larger than the sum of its proper divisors (1).

187435376497 is an equidigital number, since it uses as much as digits as its factorization.

187435376497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 106686720, while the sum is 64.

The spelling of 187435376497 in words is "one hundred eighty-seven billion, four hundred thirty-five million, three hundred seventy-six thousand, four hundred ninety-seven".