3873726243 has 48 divisors (see below), whose sum is σ = 5943974400. Its totient is φ = 2427230400.

The previous prime is 3873726209. The next prime is 3873726253. The reversal of 3873726243 is 3426273783.

3873726243 is a `hidden beast` number, since 38 + 7 + 372 + 6 + 243 = 666.

It is not a de Polignac number, because 3873726243 - 2¹⁴ = 3873709859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3873726253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1646518 + ... + 1648868.

It is an arithmetic number, because the mean of its divisors is an integer number (123832800).

Almost surely, 2^3873726243 is an apocalyptic number.

3873726243 is a deficient number, since it is larger than the sum of its proper divisors (2070248157).

3873726243 is a wasteful number, since it uses less digits than its factorization.

3873726243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552 (or 2549 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 3873726243 is about 62239.2660866113. The cubic root of 3873726243 is about 1570.5182060191.

It can be divided in two parts, 38737 and 26243, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 3873726243 in words is "three billion, eight hundred seventy-three million, seven hundred twenty-six thousand, two hundred forty-three".