378832671181 has 2 divisors, whose sum is σ = 378832671182. Its totient is φ = 378832671180.

The previous prime is 378832671131. The next prime is 378832671193. The reversal of 378832671181 is 181176238873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 365862877956 + 12969793225 = 604866^2 + 113885^2 .

It is a cyclic number.

It is not a de Polignac number, because 378832671181 - 2⁹ = 378832670669 is a prime.

It is a super-2 number, since 2×378832671181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378832671101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189416335590 + 189416335591.

It is an arithmetic number, because the mean of its divisors is an integer number (189416335591).

Almost surely, 2^378832671181 is an apocalyptic number.

It is an amenable number.

378832671181 is a deficient number, since it is larger than the sum of its proper divisors (1).

378832671181 is an equidigital number, since it uses as much as digits as its factorization.

378832671181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 55.

The spelling of 378832671181 in words is "three hundred seventy-eight billion, eight hundred thirty-two million, six hundred seventy-one thousand, one hundred eighty-one".