2651046644 has 24 divisors (see below), whose sum is σ = 4729664520. Its totient is φ = 1299743744.

The previous prime is 2651046613. The next prime is 2651046647. The reversal of 2651046644 is 4466401562.

It can be written as a sum of positive squares in 4 ways, for example, as 1103568400 + 1547478244 = 33220^2 + 39338^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2651046598 and 2651046607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651046647) 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, 550712 + ... + 555504.

It is an arithmetic number, because the mean of its divisors is an integer number (197069355).

Almost surely, 2^2651046644 is an apocalyptic number.

It is an amenable number.

2651046644 is a deficient number, since it is larger than the sum of its proper divisors (2078617876).

2651046644 is a wasteful number, since it uses less digits than its factorization.

2651046644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459 (or 7457 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 2651046644 is about 51488.3156065529. The cubic root of 2651046644 is about 1384.0096651680.

The spelling of 2651046644 in words is "two billion, six hundred fifty-one million, forty-six thousand, six hundred forty-four".