3837827893978 has 16 divisors (see below), whose sum is σ = 6213885863976. Its totient is φ = 1767214402560.

The previous prime is 3837827893973. The next prime is 3837827893979. The reversal of 3837827893978 is 8793987287383.

It can be written as a sum of positive squares in 4 ways, for example, as 2955143216809 + 882684677169 = 1719053^2 + 939513^2 .

It is a super-2 number, since 2×3837827893978² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3837827893973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170437663 + ... + 170460178.

Almost surely, 2^{3837827893978} is an apocalyptic number.

3837827893978 is a deficient number, since it is larger than the sum of its proper divisors (2376057969998).

3837827893978 is a wasteful number, since it uses less digits than its factorization.

3837827893978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340898289.

The product of its digits is 6145155072, while the sum is 82.

The spelling of 3837827893978 in words is "three trillion, eight hundred thirty-seven billion, eight hundred twenty-seven million, eight hundred ninety-three thousand, nine hundred seventy-eight".