1650726812 has 24 divisors (see below), whose sum is σ = 3407953920. Its totient is φ = 684632880.

The previous prime is 1650726811. The next prime is 1650726827. The reversal of 1650726812 is 2186270561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650726811) 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, 950012 + ... + 951747.

It is an arithmetic number, because the mean of its divisors is an integer number (141998080).

Almost surely, 2^1650726812 is an apocalyptic number.

It is an amenable number.

1650726812 is an abundant number, since it is smaller than the sum of its proper divisors (1757227108).

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

1650726812 is a wasteful number, since it uses less digits than its factorization.

1650726812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901801 (or 1901799 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1650726812 is about 40629.1374754621. The cubic root of 1650726812 is about 1181.8392298156.

The spelling of 1650726812 in words is "one billion, six hundred fifty million, seven hundred twenty-six thousand, eight hundred twelve".