87443656261420 has 24 divisors (see below), whose sum is σ = 183631967700048. Its totient is φ = 34977407352000.

The previous prime is 87443656261279. The next prime is 87443656261421. The reversal of 87443656261420 is 2416265634478.

It is not an unprimeable number, because it can be changed into a prime (87443656261421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11038695 + ... + 17226145.

It is an arithmetic number, because the mean of its divisors is an integer number (7651331987502).

Almost surely, 2^{87443656261420} is an apocalyptic number.

It is an amenable number.

87443656261420 is an abundant number, since it is smaller than the sum of its proper divisors (96188311438628).

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

87443656261420 is a wasteful number, since it uses less digits than its factorization.

87443656261420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894081 (or 6894079 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 58.

The spelling of 87443656261420 in words is "eighty-seven trillion, four hundred forty-three billion, six hundred fifty-six million, two hundred sixty-one thousand, four hundred twenty".