1383426506838 has 32 divisors (see below), whose sum is σ = 2970871188480. Its totient is φ = 427903253120.

The previous prime is 1383426506801. The next prime is 1383426506849. The reversal of 1383426506838 is 8386056243831.

It is a Curzon number.

It is a congruent 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, 95506878 + ... + 95521361.

It is an arithmetic number, because the mean of its divisors is an integer number (92839724640).

Almost surely, 2^{1383426506838} is an apocalyptic number.

1383426506838 is an abundant number, since it is smaller than the sum of its proper divisors (1587444681642).

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

1383426506838 is a wasteful number, since it uses less digits than its factorization.

1383426506838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191028332.

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 1383426506838 in words is "one trillion, three hundred eighty-three billion, four hundred twenty-six million, five hundred six thousand, eight hundred thirty-eight".