1840352223549 has 16 divisors (see below), whose sum is σ = 2804367086208. Its totient is φ = 1051622026752.

The previous prime is 1840352223539. The next prime is 1840352223553. The reversal of 1840352223549 is 9453222530481.

It is not a de Polignac number, because 1840352223549 - 2¹¹ = 1840352221501 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1840352223498 and 1840352223507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840352223539) 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, 3758869 + ... + 4220165.

It is an arithmetic number, because the mean of its divisors is an integer number (175272942888).

Almost surely, 2^{1840352223549} is an apocalyptic number.

It is an amenable number.

1840352223549 is a deficient number, since it is larger than the sum of its proper divisors (964014862659).

1840352223549 is a wasteful number, since it uses less digits than its factorization.

1840352223549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651284.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 1840352223549 in words is "one trillion, eight hundred forty billion, three hundred fifty-two million, two hundred twenty-three thousand, five hundred forty-nine".