1839242092385 has 16 divisors (see below), whose sum is σ = 2303113841280. Its totient is φ = 1407381613440.

The previous prime is 1839242092381. The next prime is 1839242092397. The reversal of 1839242092385 is 5832902429381.

It is a happy number.

It is not a de Polignac number, because 1839242092385 - 2² = 1839242092381 is a prime.

It is a super-2 number, since 2×1839242092385² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1839242092385.

It is not an unprimeable number, because it can be changed into a prime (1839242092381) 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, 4443386 + ... + 4839644.

It is an arithmetic number, because the mean of its divisors is an integer number (143944615080).

Almost surely, 2^{1839242092385} is an apocalyptic number.

It is an amenable number.

1839242092385 is a deficient number, since it is larger than the sum of its proper divisors (463871748895).

1839242092385 is a wasteful number, since it uses less digits than its factorization.

1839242092385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436648.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 1839242092385 in words is "one trillion, eight hundred thirty-nine billion, two hundred forty-two million, ninety-two thousand, three hundred eighty-five".