1081851381041 has 16 divisors (see below), whose sum is σ = 1143290265600. Its totient is φ = 1021615225488.

The previous prime is 1081851381019. The next prime is 1081851381053. The reversal of 1081851381041 is 1401831581801.

It is a cyclic number.

It is not a de Polignac number, because 1081851381041 - 2¹⁸ = 1081851118897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081851381041.

It is not an unprimeable number, because it can be changed into a prime (1081851381071) 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, 23887280 + ... + 23932526.

It is an arithmetic number, because the mean of its divisors is an integer number (71455641600).

Almost surely, 2^{1081851381041} is an apocalyptic number.

It is an amenable number.

1081851381041 is a deficient number, since it is larger than the sum of its proper divisors (61438884559).

1081851381041 is a wasteful number, since it uses less digits than its factorization.

1081851381041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58508.

The product of its (nonzero) digits is 30720, while the sum is 41.

The spelling of 1081851381041 in words is "one trillion, eighty-one billion, eight hundred fifty-one million, three hundred eighty-one thousand, forty-one".