87464548987 has 4 divisors (see below), whose sum is σ = 87532299736. Its totient is φ = 87396798240.

The previous prime is 87464548981. The next prime is 87464549069. The reversal of 87464548987 is 78984546478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87464548987 - 2³ = 87464548979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87464548981) 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, 33873438 + ... + 33876019.

It is an arithmetic number, because the mean of its divisors is an integer number (21883074934).

Almost surely, 2^87464548987 is an apocalyptic number.

87464548987 is a deficient number, since it is larger than the sum of its proper divisors (67750749).

87464548987 is a wasteful number, since it uses less digits than its factorization.

87464548987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67750748.

The product of its digits is 433520640, while the sum is 70.

The spelling of 87464548987 in words is "eighty-seven billion, four hundred sixty-four million, five hundred forty-eight thousand, nine hundred eighty-seven".