1839781065135 has 32 divisors (see below), whose sum is σ = 3170949078528. Its totient is φ = 905491290240.

The previous prime is 1839781065121. The next prime is 1839781065197. The reversal of 1839781065135 is 5315601879381.

It is a happy number.

It is not a de Polignac number, because 1839781065135 - 2⁹ = 1839781064623 is a prime.

It is a super-2 number, since 2×1839781065135² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569197 + ... + 2000886.

It is an arithmetic number, because the mean of its divisors is an integer number (99092158704).

Almost surely, 2^{1839781065135} is an apocalyptic number.

1839781065135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1839781065135 is a deficient number, since it is larger than the sum of its proper divisors (1331168013393).

1839781065135 is a wasteful number, since it uses less digits than its factorization.

1839781065135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573775.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 1839781065135 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, sixty-five thousand, one hundred thirty-five".