381413196977 has 2 divisors, whose sum is σ = 381413196978. Its totient is φ = 381413196976.

The previous prime is 381413196959. The next prime is 381413197001. The reversal of 381413196977 is 779691314183.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268447298161 + 112965898816 = 518119^2 + 336104^2 .

It is a cyclic number.

It is not a de Polignac number, because 381413196977 - 2⁸ = 381413196721 is a prime.

It is not a weakly prime, because it can be changed into another prime (381413196907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190706598488 + 190706598489.

It is an arithmetic number, because the mean of its divisors is an integer number (190706598489).

Almost surely, 2^381413196977 is an apocalyptic number.

It is an amenable number.

381413196977 is a deficient number, since it is larger than the sum of its proper divisors (1).

381413196977 is an equidigital number, since it uses as much as digits as its factorization.

381413196977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 59.

The spelling of 381413196977 in words is "three hundred eighty-one billion, four hundred thirteen million, one hundred ninety-six thousand, nine hundred seventy-seven".