381055034989 has 2 divisors, whose sum is σ = 381055034990. Its totient is φ = 381055034988.

The previous prime is 381055034977. The next prime is 381055035007. The reversal of 381055034989 is 989430550183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362536452100 + 18518582889 = 602110^2 + 136083^2 .

It is a cyclic number.

It is not a de Polignac number, because 381055034989 - 2⁷ = 381055034861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381055034929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190527517494 + 190527517495.

It is an arithmetic number, because the mean of its divisors is an integer number (190527517495).

Almost surely, 2^381055034989 is an apocalyptic number.

It is an amenable number.

381055034989 is a deficient number, since it is larger than the sum of its proper divisors (1).

381055034989 is an equidigital number, since it uses as much as digits as its factorization.

381055034989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 381055034989 in words is "three hundred eighty-one billion, fifty-five million, thirty-four thousand, nine hundred eighty-nine".