2620651087 has 2 divisors, whose sum is σ = 2620651088. Its totient is φ = 2620651086.

The previous prime is 2620651081. The next prime is 2620651129. The reversal of 2620651087 is 7801560262.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2620651087 - 2⁷ = 2620650959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620651081) 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, 1310325543 + 1310325544.

It is an arithmetic number, because the mean of its divisors is an integer number (1310325544).

Almost surely, 2^2620651087 is an apocalyptic number.

2620651087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620651087 is an equidigital number, since it uses as much as digits as its factorization.

2620651087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2620651087 is about 51192.2951917571. The cubic root of 2620651087 is about 1378.6998689328.

The spelling of 2620651087 in words is "two billion, six hundred twenty million, six hundred fifty-one thousand, eighty-seven".