2661435712 has 28 divisors (see below), whose sum is σ = 5687541076. Its totient is φ = 1228354560.

The previous prime is 2661435709. The next prime is 2661435713. The reversal of 2661435712 is 2175341662.

It can be written as a sum of positive squares in 2 ways, for example, as 598095936 + 2063339776 = 24456^2 + 45424^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661435713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598589 + ... + 1600252.

It is an arithmetic number, because the mean of its divisors is an integer number (203126467).

Almost surely, 2^2661435712 is an apocalyptic number.

It is an amenable number.

2661435712 is an abundant number, since it is smaller than the sum of its proper divisors (3026105364).

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

2661435712 is a wasteful number, since it uses less digits than its factorization.

2661435712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198866 (or 3198856 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2661435712 is about 51589.1045861430. The cubic root of 2661435712 is about 1385.8152198194.

It can be divided in two parts, 26614 and 35712, that added together give a palindrome (62326).

The spelling of 2661435712 in words is "two billion, six hundred sixty-one million, four hundred thirty-five thousand, seven hundred twelve".