187075280473 has 2 divisors, whose sum is σ = 187075280474. Its totient is φ = 187075280472.

The previous prime is 187075280423. The next prime is 187075280503. The reversal of 187075280473 is 374082570781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182967496009 + 4107784464 = 427747^2 + 64092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187075280473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187075280473.

It is not a weakly prime, because it can be changed into another prime (187075280423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93537640236 + 93537640237.

It is an arithmetic number, because the mean of its divisors is an integer number (93537640237).

Almost surely, 2^187075280473 is an apocalyptic number.

It is an amenable number.

187075280473 is a deficient number, since it is larger than the sum of its proper divisors (1).

187075280473 is an equidigital number, since it uses as much as digits as its factorization.

187075280473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 187075280473 in words is "one hundred eighty-seven billion, seventy-five million, two hundred eighty thousand, four hundred seventy-three".