381070462681 has 2 divisors, whose sum is σ = 381070462682. Its totient is φ = 381070462680.

The previous prime is 381070462631. The next prime is 381070462691. The reversal of 381070462681 is 186264070183.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353381502681 + 27688960000 = 594459^2 + 166400^2 .

It is a cyclic number.

It is not a de Polignac number, because 381070462681 - 2²⁵ = 381036908249 is a prime.

It is a super-2 number, since 2×381070462681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (381070462631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190535231340 + 190535231341.

It is an arithmetic number, because the mean of its divisors is an integer number (190535231341).

Almost surely, 2^381070462681 is an apocalyptic number.

It is an amenable number.

381070462681 is a deficient number, since it is larger than the sum of its proper divisors (1).

381070462681 is an equidigital number, since it uses as much as digits as its factorization.

381070462681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 381070462681 in words is "three hundred eighty-one billion, seventy million, four hundred sixty-two thousand, six hundred eighty-one".