3781537227 has 48 divisors (see below), whose sum is σ = 6021812160. Its totient is φ = 2272368384.

The previous prime is 3781537219. The next prime is 3781537229. The reversal of 3781537227 is 7227351873.

It is a happy number.

3781537227 is a `hidden beast` number, since 37 + 81 + 537 + 2 + 2 + 7 = 666.

It is not a de Polignac number, because 3781537227 - 2³ = 3781537219 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3781537229) 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, 1418698 + ... + 1421360.

It is an arithmetic number, because the mean of its divisors is an integer number (125454420).

Almost surely, 2^3781537227 is an apocalyptic number.

3781537227 is a deficient number, since it is larger than the sum of its proper divisors (2240274933).

3781537227 is a wasteful number, since it uses less digits than its factorization.

3781537227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 2961 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 3781537227 is about 61494.2048245198. The cubic root of 3781537227 is about 1557.9593670724.

The spelling of 3781537227 in words is "three billion, seven hundred eighty-one million, five hundred thirty-seven thousand, two hundred twenty-seven".