2642660613 has 32 divisors (see below), whose sum is σ = 4000423680. Its totient is φ = 1723550400.

The previous prime is 2642660609. The next prime is 2642660621. The reversal of 2642660613 is 3160662462.

2642660613 is a `hidden beast` number, since 2 + 6 + 42 + 6 + 606 + 1 + 3 = 666.

It is not a de Polignac number, because 2642660613 - 2² = 2642660609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642660623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531288 + ... + 536238.

It is an arithmetic number, because the mean of its divisors is an integer number (125013240).

Almost surely, 2^2642660613 is an apocalyptic number.

It is an amenable number.

2642660613 is a deficient number, since it is larger than the sum of its proper divisors (1357763067).

2642660613 is a wasteful number, since it uses less digits than its factorization.

2642660613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386 (or 5380 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2642660613 is about 51406.8148497843. The cubic root of 2642660613 is about 1382.5487820838.

The spelling of 2642660613 in words is "two billion, six hundred forty-two million, six hundred sixty thousand, six hundred thirteen".