3549157872 has 80 divisors (see below), whose sum is σ = 9887367168. Its totient is φ = 1090563840.

The previous prime is 3549157841. The next prime is 3549157883. The reversal of 3549157872 is 2787519453.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510097 + ... + 517007.

Almost surely, 2^3549157872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3549157872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4943683584).

3549157872 is an abundant number, since it is smaller than the sum of its proper divisors (6338209296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3549157872 is a wasteful number, since it uses less digits than its factorization.

3549157872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 7752 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 3549157872 is about 59574.8090387204. The cubic root of 3549157872 is about 1525.3696671874.

The spelling of 3549157872 in words is "three billion, five hundred forty-nine million, one hundred fifty-seven thousand, eight hundred seventy-two".