87564891102 has 32 divisors (see below), whose sum is σ = 189318463488. Its totient is φ = 26840592096.

The previous prime is 87564891067. The next prime is 87564891103. The reversal of 87564891102 is 20119846578.

It is a super-2 number, since 2×87564891102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87564891103) 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 15 ways as a sum of consecutive naturals, for example, 2113758 + ... + 2154785.

It is an arithmetic number, because the mean of its divisors is an integer number (5916201984).

Almost surely, 2^87564891102 is an apocalyptic number.

87564891102 is an abundant number, since it is smaller than the sum of its proper divisors (101753572386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87564891102 is a wasteful number, since it uses less digits than its factorization.

87564891102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268824.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 87564891102 in words is "eighty-seven billion, five hundred sixty-four million, eight hundred ninety-one thousand, one hundred two".