1725118513427 has 4 divisors (see below), whose sum is σ = 1815914224680. Its totient is φ = 1634322802176.

The previous prime is 1725118513399. The next prime is 1725118513441. The reversal of 1725118513427 is 7243158115271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1725118513427 - 2¹⁶ = 1725118447891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1725118513487) 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, 45397855598 + ... + 45397855635.

It is an arithmetic number, because the mean of its divisors is an integer number (453978556170).

Almost surely, 2^{1725118513427} is an apocalyptic number.

1725118513427 is a deficient number, since it is larger than the sum of its proper divisors (90795711253).

1725118513427 is an equidigital number, since it uses as much as digits as its factorization.

1725118513427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90795711252.

The product of its digits is 470400, while the sum is 47.

The spelling of 1725118513427 in words is "one trillion, seven hundred twenty-five billion, one hundred eighteen million, five hundred thirteen thousand, four hundred twenty-seven".