87443656261323 has 64 divisors (see below), whose sum is σ = 121157898301440. Its totient is φ = 56061784755200.

The previous prime is 87443656261279. The next prime is 87443656261421. The reversal of 87443656261323 is 32316265634478.

It is a cyclic number.

It is not a de Polignac number, because 87443656261323 - 2¹³ = 87443656253131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87443656261223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3955104793 + ... + 3955126901.

It is an arithmetic number, because the mean of its divisors is an integer number (1893092160960).

Almost surely, 2^{87443656261323} is an apocalyptic number.

87443656261323 is a deficient number, since it is larger than the sum of its proper divisors (33714242040117).

87443656261323 is a wasteful number, since it uses less digits than its factorization.

87443656261323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548.

The product of its digits is 104509440, while the sum is 60.

The spelling of 87443656261323 in words is "eighty-seven trillion, four hundred forty-three billion, six hundred fifty-six million, two hundred sixty-one thousand, three hundred twenty-three".