3821258678416 has 15 divisors (see below), whose sum is σ = 7403703839193. Its totient is φ = 1910625429600.

The previous prime is 3821258678383. The next prime is 3821258678453. The reversal of 3821258678416 is 6148768521283.

The square root of 3821258678416 is 1954804.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3818131632016 + 3127046400 = 1954004^2 + 55920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7574866 + ... + 8063566.

Almost surely, 2^{3821258678416} is an apocalyptic number.

3821258678416 is the 1954804-th square number.

It is an amenable number.

3821258678416 is a deficient number, since it is larger than the sum of its proper divisors (3582445160777).

3821258678416 is an frugal number, since it uses more digits than its factorization.

3821258678416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977410 (or 488703 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 61.

The spelling of 3821258678416 in words is "three trillion, eight hundred twenty-one billion, two hundred fifty-eight million, six hundred seventy-eight thousand, four hundred sixteen".