1617272573243 has 8 divisors (see below), whose sum is σ = 1771454746080. Its totient is φ = 1469651344000.

The previous prime is 1617272573233. The next prime is 1617272573269. The reversal of 1617272573243 is 3423752727161.

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 1617272573243 - 2⁴ = 1617272573227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1617272573191 and 1617272573200.

It is not an unprimeable number, because it can be changed into a prime (1617272573233) 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, 1640235383 + ... + 1640236368.

It is an arithmetic number, because the mean of its divisors is an integer number (221431843260).

Almost surely, 2^{1617272573243} is an apocalyptic number.

1617272573243 is a deficient number, since it is larger than the sum of its proper divisors (154182172837).

1617272573243 is a wasteful number, since it uses less digits than its factorization.

1617272573243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280471797.

The product of its digits is 2963520, while the sum is 50.

The spelling of 1617272573243 in words is "one trillion, six hundred seventeen billion, two hundred seventy-two million, five hundred seventy-three thousand, two hundred forty-three".