87461112577 has 4 divisors (see below), whose sum is σ = 87464051136. Its totient is φ = 87458174020.

The previous prime is 87461112551. The next prime is 87461112581. The reversal of 87461112577 is 77521116478.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87461112577 - 2¹⁹ = 87460588289 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87461112577.

It is not an unprimeable number, because it can be changed into a prime (87461112377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424173 + ... + 1484314.

It is an arithmetic number, because the mean of its divisors is an integer number (21866012784).

Almost surely, 2^87461112577 is an apocalyptic number.

It is an amenable number.

87461112577 is a deficient number, since it is larger than the sum of its proper divisors (2938559).

87461112577 is a wasteful number, since it uses less digits than its factorization.

87461112577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938558.

The product of its digits is 658560, while the sum is 49.

The spelling of 87461112577 in words is "eighty-seven billion, four hundred sixty-one million, one hundred twelve thousand, five hundred seventy-seven".