1649610912 has 48 divisors (see below), whose sum is σ = 4584952512. Its totient is φ = 517524480.

The previous prime is 1649610901. The next prime is 1649610917. The reversal of 1649610912 is 2190169461.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1649610917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503764 + ... + 507027.

It is an arithmetic number, because the mean of its divisors is an integer number (95519844).

Almost surely, 2^1649610912 is an apocalyptic number.

1649610912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1649610912 is an abundant number, since it is smaller than the sum of its proper divisors (2935341600).

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

1649610912 is a wasteful number, since it uses less digits than its factorization.

1649610912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010821 (or 1010813 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 1649610912 is about 40615.4023985975. The cubic root of 1649610912 is about 1181.5728599406.

The spelling of 1649610912 in words is "one billion, six hundred forty-nine million, six hundred ten thousand, nine hundred twelve".