2601619381291 has 8 divisors (see below), whose sum is σ = 3045798300384. Its totient is φ = 2175570214080.

The previous prime is 2601619381259. The next prime is 2601619381297. The reversal of 2601619381291 is 1921839161062.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2601619381291 - 2⁵ = 2601619381259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2601619381297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4532437660 + ... + 4532438233.

It is an arithmetic number, because the mean of its divisors is an integer number (380724787548).

Almost surely, 2^{2601619381291} is an apocalyptic number.

2601619381291 is a deficient number, since it is larger than the sum of its proper divisors (444178919093).

2601619381291 is an equidigital number, since it uses as much as digits as its factorization.

2601619381291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9064875941.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 2601619381291 in words is "two trillion, six hundred one billion, six hundred nineteen million, three hundred eighty-one thousand, two hundred ninety-one".