1649735854 has 16 divisors (see below), whose sum is σ = 2672652528. Its totient is φ = 759218112.

The previous prime is 1649735849. The next prime is 1649735869. The reversal of 1649735854 is 4585379461.

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, 82407 + ... + 100450.

It is an arithmetic number, because the mean of its divisors is an integer number (167040783).

Almost surely, 2^1649735854 is an apocalyptic number.

1649735854 is a deficient number, since it is larger than the sum of its proper divisors (1022916674).

1649735854 is a wasteful number, since it uses less digits than its factorization.

1649735854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183219.

The product of its digits is 3628800, while the sum is 52.

The square root of 1649735854 is about 40616.9404805433. The cubic root of 1649735854 is about 1181.6026900758.

The spelling of 1649735854 in words is "one billion, six hundred forty-nine million, seven hundred thirty-five thousand, eight hundred fifty-four".