543748590649 has 4 divisors (see below), whose sum is σ = 593180280720. Its totient is φ = 494316900580.

The previous prime is 543748590617. The next prime is 543748590667. The reversal of 543748590649 is 946095847345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 543748590649 - 2⁵ = 543748590617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543748591649) 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, 24715845019 + ... + 24715845040.

It is an arithmetic number, because the mean of its divisors is an integer number (148295070180).

Almost surely, 2^543748590649 is an apocalyptic number.

It is an amenable number.

543748590649 is a deficient number, since it is larger than the sum of its proper divisors (49431690071).

543748590649 is a wasteful number, since it uses less digits than its factorization.

543748590649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49431690070.

The product of its (nonzero) digits is 130636800, while the sum is 64.

The spelling of 543748590649 in words is "five hundred forty-three billion, seven hundred forty-eight million, five hundred ninety thousand, six hundred forty-nine".