87620736063 has 32 divisors (see below), whose sum is σ = 136401408000. Its totient is φ = 50010467808.

The previous prime is 87620736061. The next prime is 87620736089. The reversal of 87620736063 is 36063702678.

It is a Cunningham number, because it is equal to 296008²-1.

It is not a de Polignac number, because 87620736063 - 2¹ = 87620736061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87620736061) 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 in 31 ways as a sum of consecutive naturals, for example, 838693 + ... + 937361.

It is an arithmetic number, because the mean of its divisors is an integer number (4262544000).

Almost surely, 2^87620736063 is an apocalyptic number.

87620736063 is a deficient number, since it is larger than the sum of its proper divisors (48780671937).

87620736063 is an equidigital number, since it uses as much as digits as its factorization.

87620736063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99556 (or 99542 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 87620736063 in words is "eighty-seven billion, six hundred twenty million, seven hundred thirty-six thousand, sixty-three".