378149165041 has 2 divisors, whose sum is σ = 378149165042. Its totient is φ = 378149165040.

The previous prime is 378149165003. The next prime is 378149165057. The reversal of 378149165041 is 140561941873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372104880016 + 6044285025 = 610004^2 + 77745^2 .

It is a cyclic number.

It is not a de Polignac number, because 378149165041 - 2¹³ = 378149156849 is a prime.

It is not a weakly prime, because it can be changed into another prime (378149195041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189074582520 + 189074582521.

It is an arithmetic number, because the mean of its divisors is an integer number (189074582521).

Almost surely, 2^378149165041 is an apocalyptic number.

It is an amenable number.

378149165041 is a deficient number, since it is larger than the sum of its proper divisors (1).

378149165041 is an equidigital number, since it uses as much as digits as its factorization.

378149165041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 378149165041 in words is "three hundred seventy-eight billion, one hundred forty-nine million, one hundred sixty-five thousand, forty-one".