3521490881 has 8 divisors (see below), whose sum is σ = 3556911360. Its totient is φ = 3486211488.

The previous prime is 3521490827. The next prime is 3521490919. The reversal of 3521490881 is 1880941253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3521490881 - 2²² = 3517296577 is a prime.

It is a super-3 number, since 3×3521490881³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521490811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15260 + ... + 85298.

It is an arithmetic number, because the mean of its divisors is an integer number (444613920).

Almost surely, 2^3521490881 is an apocalyptic number.

It is an amenable number.

3521490881 is a deficient number, since it is larger than the sum of its proper divisors (35420479).

3521490881 is a wasteful number, since it uses less digits than its factorization.

3521490881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70543.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 3521490881 is about 59342.1509637121. The cubic root of 3521490881 is about 1521.3957172322.

The spelling of 3521490881 in words is "three billion, five hundred twenty-one million, four hundred ninety thousand, eight hundred eighty-one".