1838535950840 has 32 divisors (see below), whose sum is σ = 4137157680480. Its totient is φ = 735334061952.

The previous prime is 1838535950819. The next prime is 1838535950851. The reversal of 1838535950840 is 480595358381.

It is a happy number.

It is a super-2 number, since 2×1838535950840² (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 1838535950840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138444 + ... + 2872283.

It is an arithmetic number, because the mean of its divisors is an integer number (129286177515).

Almost surely, 2^{1838535950840} is an apocalyptic number.

1838535950840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1838535950840 is an abundant number, since it is smaller than the sum of its proper divisors (2298621729640).

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

1838535950840 is a wasteful number, since it uses less digits than its factorization.

1838535950840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019911 (or 5019907 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 59.

The spelling of 1838535950840 in words is "one trillion, eight hundred thirty-eight billion, five hundred thirty-five million, nine hundred fifty thousand, eight hundred forty".