1742818985445 has 32 divisors (see below), whose sum is σ = 2810304000000. Its totient is φ = 922257969984.

The previous prime is 1742818985441. The next prime is 1742818985449. The reversal of 1742818985445 is 5445898182471.

It is an interprime number because it is at equal distance from previous prime (1742818985441) and next prime (1742818985449).

It is not a de Polignac number, because 1742818985445 - 2² = 1742818985441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1742818985441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869556 + ... + 2059554.

It is an arithmetic number, because the mean of its divisors is an integer number (87822000000).

Almost surely, 2^{1742818985445} is an apocalyptic number.

1742818985445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1742818985445 is a deficient number, since it is larger than the sum of its proper divisors (1067485014555).

1742818985445 is a wasteful number, since it uses less digits than its factorization.

1742818985445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190769.

The product of its digits is 103219200, while the sum is 66.

The spelling of 1742818985445 in words is "one trillion, seven hundred forty-two billion, eight hundred eighteen million, nine hundred eighty-five thousand, four hundred forty-five".