1820342355574 has 8 divisors (see below), whose sum is σ = 2730996741528. Its totient is φ = 910010108400.

The previous prime is 1820342355571. The next prime is 1820342355583. The reversal of 1820342355574 is 4755532430281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820342355571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80520567 + ... + 80543170.

It is an arithmetic number, because the mean of its divisors is an integer number (341374592691).

Almost surely, 2^{1820342355574} is an apocalyptic number.

1820342355574 is a deficient number, since it is larger than the sum of its proper divisors (910654385954).

1820342355574 is a wasteful number, since it uses less digits than its factorization.

1820342355574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161069390.

The product of its (nonzero) digits is 4032000, while the sum is 49.

The spelling of 1820342355574 in words is "one trillion, eight hundred twenty billion, three hundred forty-two million, three hundred fifty-five thousand, five hundred seventy-four".