1745890819128 has 48 divisors (see below), whose sum is σ = 4777201272480. Its totient is φ = 575963979264.

The previous prime is 1745890819093. The next prime is 1745890819129. The reversal of 1745890819128 is 8219180985471.

1745890819128 is a `hidden beast` number, since 1 + 7 + 458 + 90 + 8 + 1 + 91 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745890819129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124985200 + ... + 124999167.

It is an arithmetic number, because the mean of its divisors is an integer number (99525026510).

Almost surely, 2^{1745890819128} is an apocalyptic number.

1745890819128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1745890819128 is an abundant number, since it is smaller than the sum of its proper divisors (3031310453352).

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

1745890819128 is a wasteful number, since it uses less digits than its factorization.

1745890819128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249984476 (or 249984469 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 63.

The spelling of 1745890819128 in words is "one trillion, seven hundred forty-five billion, eight hundred ninety million, eight hundred nineteen thousand, one hundred twenty-eight".