3827781504 has 48 divisors (see below), whose sum is σ = 11014843320. Its totient is φ = 1275926784.

The previous prime is 3827781497. The next prime is 3827781521. The reversal of 3827781504 is 4051877283.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×3827781504² = 29303822484729004032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3827781504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1660212 + ... + 1662515.

Almost surely, 2^3827781504 is an apocalyptic number.

It is an amenable number.

3827781504 is an abundant number, since it is smaller than the sum of its proper divisors (7187061816).

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

3827781504 is a wasteful number, since it uses less digits than its factorization.

3827781504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322747 (or 3322732 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 3827781504 is about 61869.0674246832. The cubic root of 3827781504 is about 1564.2843960993.

The spelling of 3827781504 in words is "three billion, eight hundred twenty-seven million, seven hundred eighty-one thousand, five hundred four".