2881481190981 has 16 divisors (see below), whose sum is σ = 3847944434880. Its totient is φ = 1918004538240.

The previous prime is 2881481190949. The next prime is 2881481190983. The reversal of 2881481190981 is 1890911841882.

It is not a de Polignac number, because 2881481190981 - 2⁵ = 2881481190949 is a prime.

It is a super-2 number, since 2×2881481190981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881481190983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6100801 + ... + 6556121.

It is an arithmetic number, because the mean of its divisors is an integer number (240496527180).

Almost surely, 2^{2881481190981} is an apocalyptic number.

It is an amenable number.

2881481190981 is a deficient number, since it is larger than the sum of its proper divisors (966463243899).

2881481190981 is a wasteful number, since it uses less digits than its factorization.

2881481190981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458596.

The product of its (nonzero) digits is 2654208, while the sum is 60.

The spelling of 2881481190981 in words is "two trillion, eight hundred eighty-one billion, four hundred eighty-one million, one hundred ninety thousand, nine hundred eighty-one".