1654049539999 has 4 divisors (see below), whose sum is σ = 1654092265000. Its totient is φ = 1654006815000.

The previous prime is 1654049539997. The next prime is 1654049540027. The reversal of 1654049539999 is 9999359404561.

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 1654049539999 - 2¹ = 1654049539997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654049539991) 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, 21304377 + ... + 21381874.

It is an arithmetic number, because the mean of its divisors is an integer number (413523066250).

Almost surely, 2^{1654049539999} is an apocalyptic number.

1654049539999 is a deficient number, since it is larger than the sum of its proper divisors (42725001).

1654049539999 is an equidigital number, since it uses as much as digits as its factorization.

1654049539999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42725000.

The product of its (nonzero) digits is 425152800, while the sum is 73.

The spelling of 1654049539999 in words is "one trillion, six hundred fifty-four billion, forty-nine million, five hundred thirty-nine thousand, nine hundred ninety-nine".