8487103254821 has 4 divisors (see below), whose sum is σ = 8544063679500. Its totient is φ = 8430142830144.

The previous prime is 8487103254809. The next prime is 8487103254871. The reversal of 8487103254821 is 1284523017848.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2420295832900 + 6066807421921 = 1555730^2 + 2463089^2 .

It is a cyclic number.

It is not a de Polignac number, because 8487103254821 - 2¹⁴ = 8487103238437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8487103254871) 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, 28480212116 + ... + 28480212413.

It is an arithmetic number, because the mean of its divisors is an integer number (2136015919875).

Almost surely, 2^{8487103254821} is an apocalyptic number.

It is an amenable number.

8487103254821 is a deficient number, since it is larger than the sum of its proper divisors (56960424679).

8487103254821 is a wasteful number, since it uses less digits than its factorization.

8487103254821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56960424678.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 8487103254821 in words is "eight trillion, four hundred eighty-seven billion, one hundred three million, two hundred fifty-four thousand, eight hundred twenty-one".