3778887764 has 24 divisors (see below), whose sum is σ = 6902739648. Its totient is φ = 1806728000.

The previous prime is 3778887743. The next prime is 3778887767. The reversal of 3778887764 is 4677888773.

It is a self number, because there is not a number n which added to its sum of digits gives 3778887764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778887767) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 536264 + ... + 543264.

It is an arithmetic number, because the mean of its divisors is an integer number (287614152).

Almost surely, 2^3778887764 is an apocalyptic number.

It is an amenable number.

3778887764 is a deficient number, since it is larger than the sum of its proper divisors (3123851884).

3778887764 is a wasteful number, since it uses less digits than its factorization.

3778887764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12895 (or 12893 counting only the distinct ones).

The product of its digits is 88510464, while the sum is 65.

The square root of 3778887764 is about 61472.6586703390. The cubic root of 3778887764 is about 1557.5954304123.

The spelling of 3778887764 in words is "three billion, seven hundred seventy-eight million, eight hundred eighty-seven thousand, seven hundred sixty-four".