1649850654 has 8 divisors (see below), whose sum is σ = 3299701320. Its totient is φ = 549950216.

The previous prime is 1649850649. The next prime is 1649850661. The reversal of 1649850654 is 4560589461.

It is a sphenic number, since it is the product of 3 distinct primes.

1649850654 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137487549 + ... + 137487560.

It is an arithmetic number, because the mean of its divisors is an integer number (412462665).

Almost surely, 2^1649850654 is an apocalyptic number.

1649850654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1649850654 is a wasteful number, since it uses less digits than its factorization.

1649850654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274975114.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 1649850654 is about 40618.3536593989. The cubic root of 1649850654 is about 1181.6300974619.

The spelling of 1649850654 in words is "one billion, six hundred forty-nine million, eight hundred fifty thousand, six hundred fifty-four".