2620256500357 has 2 divisors, whose sum is σ = 2620256500358. Its totient is φ = 2620256500356.

The previous prime is 2620256500339. The next prime is 2620256500403. The reversal of 2620256500357 is 7530056520262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1519280573281 + 1100975927076 = 1232591^2 + 1049274^2 .

It is a cyclic number.

It is not a de Polignac number, because 2620256500357 - 2⁷ = 2620256500229 is a prime.

It is a super-2 number, since 2×2620256500357² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620256500307) 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 as a sum of consecutive naturals, namely, 1310128250178 + 1310128250179.

It is an arithmetic number, because the mean of its divisors is an integer number (1310128250179).

Almost surely, 2^{2620256500357} is an apocalyptic number.

It is an amenable number.

2620256500357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620256500357 is an equidigital number, since it uses as much as digits as its factorization.

2620256500357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 2620256500357 in words is "two trillion, six hundred twenty billion, two hundred fifty-six million, five hundred thousand, three hundred fifty-seven".