187553841049 has 2 divisors, whose sum is σ = 187553841050. Its totient is φ = 187553841048.

The previous prime is 187553841031. The next prime is 187553841061. The reversal of 187553841049 is 940148355781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184251270025 + 3302571024 = 429245^2 + 57468^2 .

It is a cyclic number.

It is not a de Polignac number, because 187553841049 - 2⁷ = 187553840921 is a prime.

It is not a weakly prime, because it can be changed into another prime (187553841149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93776920524 + 93776920525.

It is an arithmetic number, because the mean of its divisors is an integer number (93776920525).

Almost surely, 2^187553841049 is an apocalyptic number.

It is an amenable number.

187553841049 is a deficient number, since it is larger than the sum of its proper divisors (1).

187553841049 is an equidigital number, since it uses as much as digits as its factorization.

187553841049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 187553841049 in words is "one hundred eighty-seven billion, five hundred fifty-three million, eight hundred forty-one thousand, forty-nine".