1831522069140 has 48 divisors (see below), whose sum is σ = 5193176513280. Its totient is φ = 482223530880.

The previous prime is 1831522069129. The next prime is 1831522069147. The reversal of 1831522069140 is 419602251381.

It is a junction number, because it is equal to n+sod(n) for n = 1831522069092 and 1831522069101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831522069147) 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, 193193791 + ... + 193203270.

It is an arithmetic number, because the mean of its divisors is an integer number (108191177360).

Almost surely, 2^{1831522069140} is an apocalyptic number.

1831522069140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1831522069140 is an abundant number, since it is smaller than the sum of its proper divisors (3361654444140).

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

1831522069140 is a wasteful number, since it uses less digits than its factorization.

1831522069140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386397152 (or 386397150 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 1831522069140 in words is "one trillion, eight hundred thirty-one billion, five hundred twenty-two million, sixty-nine thousand, one hundred forty".