87246844487 has 4 divisors (see below), whose sum is σ = 95178375816. Its totient is φ = 79315313160.

The previous prime is 87246844463. The next prime is 87246844501. The reversal of 87246844487 is 78444864278.

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 87246844487 - 2²⁸ = 86978409031 is a prime.

It is a super-2 number, since 2×87246844487² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87246844417) 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, 3965765648 + ... + 3965765669.

It is an arithmetic number, because the mean of its divisors is an integer number (23794593954).

Almost surely, 2^87246844487 is an apocalyptic number.

87246844487 is a deficient number, since it is larger than the sum of its proper divisors (7931531329).

87246844487 is a wasteful number, since it uses less digits than its factorization.

87246844487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7931531328.

The product of its digits is 77070336, while the sum is 62.

The spelling of 87246844487 in words is "eighty-seven billion, two hundred forty-six million, eight hundred forty-four thousand, four hundred eighty-seven".