3537198521 has 8 divisors (see below), whose sum is σ = 3671681664. Its totient is φ = 3405183120.

The previous prime is 3537198439. The next prime is 3537198523. The reversal of 3537198521 is 1258917353.

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 3537198521 - 2¹⁴ = 3537182137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3537198523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614015 + ... + 619748.

It is an arithmetic number, because the mean of its divisors is an integer number (458960208).

Almost surely, 2^3537198521 is an apocalyptic number.

It is an amenable number.

3537198521 is a deficient number, since it is larger than the sum of its proper divisors (134483143).

3537198521 is a wasteful number, since it uses less digits than its factorization.

3537198521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233871.

The product of its digits is 226800, while the sum is 44.

The square root of 3537198521 is about 59474.3517913394. The cubic root of 3537198521 is about 1523.6544283953.

The spelling of 3537198521 in words is "three billion, five hundred thirty-seven million, one hundred ninety-eight thousand, five hundred twenty-one".