1651044912 has 40 divisors (see below), whose sum is σ = 4652946240. Its totient is φ = 500316480.

The previous prime is 1651044911. The next prime is 1651044917. The reversal of 1651044912 is 2194401561.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1651044911) 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 7 ways as a sum of consecutive naturals, for example, 1562962 + ... + 1564017.

It is an arithmetic number, because the mean of its divisors is an integer number (116323656).

Almost surely, 2^1651044912 is an apocalyptic number.

1651044912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1651044912 is an abundant number, since it is smaller than the sum of its proper divisors (3001901328).

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

1651044912 is a wasteful number, since it uses less digits than its factorization.

1651044912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127001 (or 3126995 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1651044912 is about 40633.0519651182. The cubic root of 1651044912 is about 1181.9151395927.

The spelling of 1651044912 in words is "one billion, six hundred fifty-one million, forty-four thousand, nine hundred twelve".