2620380307391 has 32 divisors (see below), whose sum is σ = 3362368665600. Its totient is φ = 1983063091680.

The previous prime is 2620380307373. The next prime is 2620380307417. The reversal of 2620380307391 is 1937030830262.

It is a de Polignac number, because none of the positive numbers 2^k-2620380307391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620380307351) 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, 3097601 + ... + 3851738.

It is an arithmetic number, because the mean of its divisors is an integer number (105074020800).

Almost surely, 2^{2620380307391} is an apocalyptic number.

2620380307391 is a deficient number, since it is larger than the sum of its proper divisors (741988358209).

2620380307391 is a wasteful number, since it uses less digits than its factorization.

2620380307391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949499.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 2620380307391 in words is "two trillion, six hundred twenty billion, three hundred eighty million, three hundred seven thousand, three hundred ninety-one".