3781067841811 has 16 divisors (see below), whose sum is σ = 4206098792448. Its totient is φ = 3375356868000.

The previous prime is 3781067841797. The next prime is 3781067841853. The reversal of 3781067841811 is 1181487601873.

It is not a de Polignac number, because 3781067841811 - 2⁵ = 3781067841779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3781067841311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555515 + ... + 3754036.

It is an arithmetic number, because the mean of its divisors is an integer number (262881174528).

Almost surely, 2^{3781067841811} is an apocalyptic number.

3781067841811 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3781067841811 is a deficient number, since it is larger than the sum of its proper divisors (425030950637).

3781067841811 is a wasteful number, since it uses less digits than its factorization.

3781067841811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311082.

The product of its (nonzero) digits is 1806336, while the sum is 55.

The spelling of 3781067841811 in words is "three trillion, seven hundred eighty-one billion, sixty-seven million, eight hundred forty-one thousand, eight hundred eleven".