3481261751081 has 4 divisors (see below), whose sum is σ = 3540266187600. Its totient is φ = 3422257314564.

The previous prime is 3481261751069. The next prime is 3481261751113. The reversal of 3481261751081 is 1801571621843.

3481261751081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3481261751081 is a prime.

It is a super-2 number, since 2×3481261751081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3481261751881) 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 3 ways as a sum of consecutive naturals, for example, 29502218171 + ... + 29502218288.

It is an arithmetic number, because the mean of its divisors is an integer number (885066546900).

Almost surely, 2^{3481261751081} is an apocalyptic number.

It is an amenable number.

3481261751081 is a deficient number, since it is larger than the sum of its proper divisors (59004436519).

3481261751081 is an equidigital number, since it uses as much as digits as its factorization.

3481261751081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59004436518.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 3481261751081 in words is "three trillion, four hundred eighty-one billion, two hundred sixty-one million, seven hundred fifty-one thousand, eighty-one".