3538721885 has 8 divisors (see below), whose sum is σ = 4336816896. Its totient is φ = 2770743760.

The previous prime is 3538721881. The next prime is 3538721891. The reversal of 3538721885 is 5881278353.

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

It is not a de Polignac number, because 3538721885 - 2² = 3538721881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538721881) 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, 7528961 + ... + 7529430.

It is an arithmetic number, because the mean of its divisors is an integer number (542102112).

Almost surely, 2^3538721885 is an apocalyptic number.

It is an amenable number.

3538721885 is a deficient number, since it is larger than the sum of its proper divisors (798095011).

3538721885 is a wasteful number, since it uses less digits than its factorization.

3538721885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15058443.

The product of its digits is 1612800, while the sum is 50.

The square root of 3538721885 is about 59487.1573114735. The cubic root of 3538721885 is about 1523.8731275687.

The spelling of 3538721885 in words is "three billion, five hundred thirty-eight million, seven hundred twenty-one thousand, eight hundred eighty-five".