1138920491814 has 32 divisors (see below), whose sum is σ = 2603411006976. Its totient is φ = 325385333760.

The previous prime is 1138920491789. The next prime is 1138920491831. The reversal of 1138920491814 is 4181940298311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174747 + ... + 1519334.

It is an arithmetic number, because the mean of its divisors is an integer number (81356593968).

Almost surely, 2^{1138920491814} is an apocalyptic number.

1138920491814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1138920491814 is an abundant number, since it is smaller than the sum of its proper divisors (1464490515162).

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

1138920491814 is a wasteful number, since it uses less digits than its factorization.

1138920491814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710100.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 1138920491814 in words is "one trillion, one hundred thirty-eight billion, nine hundred twenty million, four hundred ninety-one thousand, eight hundred fourteen".