2620256347 has 16 divisors (see below), whose sum is σ = 2790262080. Its totient is φ = 2455078912.

The previous prime is 2620256329. The next prime is 2620256377. The reversal of 2620256347 is 7436520262.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2620256347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2620256377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984843 + ... + 987499.

It is an arithmetic number, because the mean of its divisors is an integer number (174391380).

Almost surely, 2^2620256347 is an apocalyptic number.

2620256347 is a deficient number, since it is larger than the sum of its proper divisors (170005733).

2620256347 is a wasteful number, since it uses less digits than its factorization.

2620256347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 2620256347 is about 51188.4395835622. The cubic root of 2620256347 is about 1378.6306424574.

The spelling of 2620256347 in words is "two billion, six hundred twenty million, two hundred fifty-six thousand, three hundred forty-seven".