1654048899 has 24 divisors (see below), whose sum is σ = 2429373440. Its totient is φ = 1084211568.

The previous prime is 1654048867. The next prime is 1654048919. The reversal of 1654048899 is 9988404561.

1654048899 is a `hidden beast` number, since 1 + 6 + 540 + 4 + 8 + 8 + 99 = 666.

It is a Cunningham number, because it is equal to 40670²-1.

It is not a de Polignac number, because 1654048899 - 2⁵ = 1654048867 is a prime.

It is a super-2 number, since 2×1654048899² = 5471755520566224402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1654048829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363762 + ... + 368280.

Almost surely, 2^1654048899 is an apocalyptic number.

1654048899 is a deficient number, since it is larger than the sum of its proper divisors (775324541).

1654048899 is a wasteful number, since it uses less digits than its factorization.

1654048899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1654048899 is about 40669.9999877059. Note that the first 4 decimals coincide. The cubic root of 1654048899 is about 1182.6315155422.

The spelling of 1654048899 in words is "one billion, six hundred fifty-four million, forty-eight thousand, eight hundred ninety-nine".