1838161651350 has 96 divisors (see below), whose sum is σ = 4567115248416. Its totient is φ = 489266150400.

The previous prime is 1838161651279. The next prime is 1838161651357. The reversal of 1838161651350 is 531561618381.

It is a self number, because there is not a number n which added to its sum of digits gives 1838161651350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838161651357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196863882 + ... + 196873218.

It is an arithmetic number, because the mean of its divisors is an integer number (47574117171).

Almost surely, 2^{1838161651350} is an apocalyptic number.

1838161651350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1838161651350 is an abundant number, since it is smaller than the sum of its proper divisors (2728953597066).

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

1838161651350 is a wasteful number, since it uses less digits than its factorization.

1838161651350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11650 (or 11645 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 1838161651350 in words is "one trillion, eight hundred thirty-eight billion, one hundred sixty-one million, six hundred fifty-one thousand, three hundred fifty".