87378049141 has 2 divisors, whose sum is σ = 87378049142. Its totient is φ = 87378049140.

The previous prime is 87378049051. The next prime is 87378049151. The reversal of 87378049141 is 14194087378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59269850116 + 28108199025 = 243454^2 + 167655^2 .

It is a cyclic number.

It is not a de Polignac number, because 87378049141 - 2¹¹ = 87378047093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87378049151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43689024570 + 43689024571.

It is an arithmetic number, because the mean of its divisors is an integer number (43689024571).

Almost surely, 2^87378049141 is an apocalyptic number.

It is an amenable number.

87378049141 is a deficient number, since it is larger than the sum of its proper divisors (1).

87378049141 is an equidigital number, since it uses as much as digits as its factorization.

87378049141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 87378049141 in words is "eighty-seven billion, three hundred seventy-eight million, forty-nine thousand, one hundred forty-one".