381305786411 has 8 divisors (see below), whose sum is σ = 419407718448. Its totient is φ = 346641622800.

The previous prime is 381305786399. The next prime is 381305786413. The reversal of 381305786411 is 114687503183.

It is not a de Polignac number, because 381305786411 - 2¹⁸ = 381305524267 is a prime.

It is a super-2 number, since 2×381305786411² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381305786413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143239010 + ... + 143241671.

It is an arithmetic number, because the mean of its divisors is an integer number (52425964806).

Almost surely, 2^381305786411 is an apocalyptic number.

381305786411 is a deficient number, since it is larger than the sum of its proper divisors (38101932037).

381305786411 is an equidigital number, since it uses as much as digits as its factorization.

381305786411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286480714 (or 286480692 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 381305786411 in words is "three hundred eighty-one billion, three hundred five million, seven hundred eighty-six thousand, four hundred eleven".