1745874287461 has 8 divisors (see below), whose sum is σ = 1795391785880. Its totient is φ = 1696479510528.

The previous prime is 1745874287459. The next prime is 1745874287489. The reversal of 1745874287461 is 1647824785471.

It can be written as a sum of positive squares in 4 ways, for example, as 1036100052100 + 709774235361 = 1017890^2 + 842481^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1745874287461 - 2¹ = 1745874287459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1745874287393 and 1745874287402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745874285461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30651516 + ... + 30708421.

It is an arithmetic number, because the mean of its divisors is an integer number (224423973235).

Almost surely, 2^{1745874287461} is an apocalyptic number.

It is an amenable number.

1745874287461 is a deficient number, since it is larger than the sum of its proper divisors (49517498419).

1745874287461 is an equidigital number, since it uses as much as digits as its factorization.

1745874287461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61360743.

The product of its digits is 84295680, while the sum is 64.

The spelling of 1745874287461 in words is "one trillion, seven hundred forty-five billion, eight hundred seventy-four million, two hundred eighty-seven thousand, four hundred sixty-one".