1728390425245 has 8 divisors (see below), whose sum is σ = 2262620193120. Its totient is φ = 1257011218320.

The previous prime is 1728390425197. The next prime is 1728390425291. The reversal of 1728390425245 is 5425240938271.

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

It is not a de Polignac number, because 1728390425245 - 2¹⁷ = 1728390294173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1728390425192 and 1728390425201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15712640175 + ... + 15712640284.

It is an arithmetic number, because the mean of its divisors is an integer number (282827524140).

Almost surely, 2^{1728390425245} is an apocalyptic number.

It is an amenable number.

1728390425245 is a deficient number, since it is larger than the sum of its proper divisors (534229767875).

1728390425245 is a wasteful number, since it uses less digits than its factorization.

1728390425245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31425280475.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 1728390425245 in words is "one trillion, seven hundred twenty-eight billion, three hundred ninety million, four hundred twenty-five thousand, two hundred forty-five".