1083618838940 has 48 divisors (see below), whose sum is σ = 2568074755680. Its totient is φ = 380455514880.

The previous prime is 1083618838909. The next prime is 1083618838943. The reversal of 1083618838940 is 498388163801.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1083618838940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083618838943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84916727 + ... + 84929486.

It is an arithmetic number, because the mean of its divisors is an integer number (53501557410).

Almost surely, 2^{1083618838940} is an apocalyptic number.

1083618838940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1083618838940 is an abundant number, since it is smaller than the sum of its proper divisors (1484455916740).

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

1083618838940 is a wasteful number, since it uses less digits than its factorization.

1083618838940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169846262 (or 169846260 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 1083618838940 in words is "one trillion, eighty-three billion, six hundred eighteen million, eight hundred thirty-eight thousand, nine hundred forty".