2621080686909 has 8 divisors (see below), whose sum is σ = 3700349205120. Its totient is φ = 1644599646656.

The previous prime is 2621080686901. The next prime is 2621080686947. The reversal of 2621080686909 is 9096860801262.

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 2621080686909 - 2³ = 2621080686901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621080686901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25696869429 + ... + 25696869530.

It is an arithmetic number, because the mean of its divisors is an integer number (462543650640).

Almost surely, 2^{2621080686909} is an apocalyptic number.

It is an amenable number.

2621080686909 is a deficient number, since it is larger than the sum of its proper divisors (1079268518211).

2621080686909 is a wasteful number, since it uses less digits than its factorization.

2621080686909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51393738979.

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 2621080686909 in words is "two trillion, six hundred twenty-one billion, eighty million, six hundred eighty-six thousand, nine hundred nine".