3827625778 has 4 divisors (see below), whose sum is σ = 5741438670. Its totient is φ = 1913812888.

The previous prime is 3827625773. The next prime is 3827625793. The reversal of 3827625778 is 8775267283.

3827625778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8775267283 = 6491 ⋅1351913.

It can be written as a sum of positive squares in only one way, i.e., 3666665809 + 160959969 = 60553^2 + 12687^2 .

It is not an unprimeable number, because it can be changed into a prime (3827625773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956906443 + ... + 956906446.

Almost surely, 2^3827625778 is an apocalyptic number.

3827625778 is a deficient number, since it is larger than the sum of its proper divisors (1913812892).

3827625778 is a wasteful number, since it uses less digits than its factorization.

3827625778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913812891.

The product of its digits is 7902720, while the sum is 55.

The square root of 3827625778 is about 61867.8088992975. The cubic root of 3827625778 is about 1564.2631825012.

The spelling of 3827625778 in words is "three billion, eight hundred twenty-seven million, six hundred twenty-five thousand, seven hundred seventy-eight".