3721159680 has 352 divisors, whose sum is σ = 13880035584. Its totient is φ = 833224704.

The previous prime is 3721159649. The next prime is 3721159693. The reversal of 3721159680 is 869511273.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5698234 + ... + 5698886.

Almost surely, 2^3721159680 is an apocalyptic number.

3721159680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3721159680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6940017792).

3721159680 is an abundant number, since it is smaller than the sum of its proper divisors (10158875904).

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

3721159680 is a wasteful number, since it uses less digits than its factorization.

3721159680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 3721159680 is about 61001.3088384176. The cubic root of 3721159680 is about 1549.6231730503.

The spelling of 3721159680 in words is "three billion, seven hundred twenty-one million, one hundred fifty-nine thousand, six hundred eighty".