3896153778 has 32 divisors (see below), whose sum is σ = 8570970432. Its totient is φ = 1180650240.

The previous prime is 3896153743. The next prime is 3896153791. The reversal of 3896153778 is 8773516983.

3896153778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235951 + ... + 251922.

It is an arithmetic number, because the mean of its divisors is an integer number (267842826).

Almost surely, 2^3896153778 is an apocalyptic number.

3896153778 is an abundant number, since it is smaller than the sum of its proper divisors (4674816654).

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

3896153778 is a wasteful number, since it uses less digits than its factorization.

3896153778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487911 (or 487889 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 3896153778 is about 62419.1779663911. The cubic root of 3896153778 is about 1573.5432944902.

It can be divided in two parts, 389615 and 3778, that added together give a palindrome (393393).

The spelling of 3896153778 in words is "three billion, eight hundred ninety-six million, one hundred fifty-three thousand, seven hundred seventy-eight".