3721870512 has 80 divisors (see below), whose sum is σ = 10692396000. Its totient is φ = 1239549696.

The previous prime is 3721870501. The next prime is 3721870519. The reversal of 3721870512 is 2150781273.

3721870512 is a `hidden beast` number, since 3 + 72 + 1 + 8 + 70 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3721870519) 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 15 ways as a sum of consecutive naturals, for example, 614314 + ... + 620342.

It is an arithmetic number, because the mean of its divisors is an integer number (133654950).

Almost surely, 2^3721870512 is an apocalyptic number.

It is an amenable number.

3721870512 is an abundant number, since it is smaller than the sum of its proper divisors (6970525488).

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

3721870512 is a wasteful number, since it uses less digits than its factorization.

3721870512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7463 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 3721870512 is about 61007.1349269903. The cubic root of 3721870512 is about 1549.7218386727.

The spelling of 3721870512 in words is "three billion, seven hundred twenty-one million, eight hundred seventy thousand, five hundred twelve".