3543479981 has 16 divisors (see below), whose sum is σ = 3810578688. Its totient is φ = 3286800000.

The previous prime is 3543479921. The next prime is 3543480001. The reversal of 3543479981 is 1899743453.

It is a cyclic number.

It is not a de Polignac number, because 3543479981 - 2¹⁰ = 3543478957 is a prime.

It is a super-2 number, since 2×3543479981² = 25112500751495520722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3543479911) 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, 146231 + ... + 168731.

It is an arithmetic number, because the mean of its divisors is an integer number (238161168).

Almost surely, 2^3543479981 is an apocalyptic number.

It is an amenable number.

3543479981 is a deficient number, since it is larger than the sum of its proper divisors (267098707).

3543479981 is a wasteful number, since it uses less digits than its factorization.

3543479981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22732.

The product of its digits is 3265920, while the sum is 53.

The square root of 3543479981 is about 59527.1365093266. The cubic root of 3543479981 is about 1524.5558116528. Note that the first 3 decimals are identical.

The spelling of 3543479981 in words is "three billion, five hundred forty-three million, four hundred seventy-nine thousand, nine hundred eighty-one".