2651205326613 has 8 divisors (see below), whose sum is σ = 3555373617888. Its totient is φ = 1757253626544.

The previous prime is 2651205326597. The next prime is 2651205326641. The reversal of 2651205326613 is 3166235021562.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2651205326613 - 2⁴ = 2651205326597 is a prime.

It is a super-2 number, since 2×2651205326613² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651205326713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554147195 + ... + 2554148232.

It is an arithmetic number, because the mean of its divisors is an integer number (444421702236).

Almost surely, 2^{2651205326613} is an apocalyptic number.

It is an amenable number.

2651205326613 is a deficient number, since it is larger than the sum of its proper divisors (904168291275).

2651205326613 is a wasteful number, since it uses less digits than its factorization.

2651205326613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108295603.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 2651205326613 in words is "two trillion, six hundred fifty-one billion, two hundred five million, three hundred twenty-six thousand, six hundred thirteen".