368181779887 has 2 divisors, whose sum is σ = 368181779888. Its totient is φ = 368181779886.

The previous prime is 368181779843. The next prime is 368181779921. The reversal of 368181779887 is 788977181863.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 368181779887 - 2⁷ = 368181779759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368181719887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184090889943 + 184090889944.

It is an arithmetic number, because the mean of its divisors is an integer number (184090889944).

Almost surely, 2^368181779887 is an apocalyptic number.

368181779887 is a deficient number, since it is larger than the sum of its proper divisors (1).

368181779887 is an equidigital number, since it uses as much as digits as its factorization.

368181779887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 227598336, while the sum is 73.

The spelling of 368181779887 in words is "three hundred sixty-eight billion, one hundred eighty-one million, seven hundred seventy-nine thousand, eight hundred eighty-seven".