2651328436 has 24 divisors (see below), whose sum is σ = 4667297544. Its totient is φ = 1317834240.

The previous prime is 2651328431. The next prime is 2651328437. The reversal of 2651328436 is 6348231562.

It can be written as a sum of positive squares in 4 ways, for example, as 891022500 + 1760305936 = 29850^2 + 41956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651328431) 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, 681216 + ... + 685096.

It is an arithmetic number, because the mean of its divisors is an integer number (194470731).

Almost surely, 2^2651328436 is an apocalyptic number.

It is an amenable number.

2651328436 is a deficient number, since it is larger than the sum of its proper divisors (2015969108).

2651328436 is a wasteful number, since it uses less digits than its factorization.

2651328436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851 (or 4849 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 2651328436 is about 51491.0519993523. The cubic root of 2651328436 is about 1384.0587010252.

Adding to 2651328436 its reverse (6348231562), we get a palindrome (8999559998).

The spelling of 2651328436 in words is "two billion, six hundred fifty-one million, three hundred twenty-eight thousand, four hundred thirty-six".