2601012613 has 4 divisors (see below), whose sum is σ = 2602349100. Its totient is φ = 2599676128.

The previous prime is 2601012553. The next prime is 2601012637. The reversal of 2601012613 is 3162101062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1909427809 + 691584804 = 43697^2 + 26298^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601012613 - 2¹³ = 2601004421 is a prime.

It is a super-2 number, since 2×2601012613² = 13530533225970175538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601012413) 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 3 ways as a sum of consecutive naturals, for example, 665320 + ... + 669217.

It is an arithmetic number, because the mean of its divisors is an integer number (650587275).

Almost surely, 2^2601012613 is an apocalyptic number.

It is an amenable number.

2601012613 is a deficient number, since it is larger than the sum of its proper divisors (1336487).

2601012613 is a wasteful number, since it uses less digits than its factorization.

2601012613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336486.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2601012613 is about 51000.1236567128. The cubic root of 2601012613 is about 1375.2473583413.

Adding to 2601012613 its reverse (3162101062), we get a palindrome (5763113675).

The spelling of 2601012613 in words is "two billion, six hundred one million, twelve thousand, six hundred thirteen".