3778243136 has 14 divisors (see below), whose sum is σ = 7497451350. Its totient is φ = 1889121536.

The previous prime is 3778243109. The next prime is 3778243153. The reversal of 3778243136 is 6313428773.

It can be written as a sum of positive squares in only one way, i.e., 3593283136 + 184960000 = 59944^2 + 13600^2 .

It is a super-2 number, since 2×3778243136² = 28550242389462228992, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 29517461 + ... + 29517588.

Almost surely, 2^3778243136 is an apocalyptic number.

It is an amenable number.

3778243136 is a deficient number, since it is larger than the sum of its proper divisors (3719208214).

3778243136 is an equidigital number, since it uses as much as digits as its factorization.

3778243136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59035061 (or 59035051 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The square root of 3778243136 is about 61467.4152376688. The cubic root of 3778243136 is about 1557.5068570199.

The spelling of 3778243136 in words is "three billion, seven hundred seventy-eight million, two hundred forty-three thousand, one hundred thirty-six".