8940566347487 has 4 divisors (see below), whose sum is σ = 8940624992376. Its totient is φ = 8940507702600.

The previous prime is 8940566347451. The next prime is 8940566347529. The reversal of 8940566347487 is 7847436650498.

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 8940566347487 - 2²² = 8940562153183 is a prime.

It is a super-2 number, since 2×8940566347487² (a number of 27 digits) contains 22 as substring.

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 8940566347487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8940563347487) 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, 29093168 + ... + 29398869.

It is an arithmetic number, because the mean of its divisors is an integer number (2235156248094).

Almost surely, 2^{8940566347487} is an apocalyptic number.

8940566347487 is a deficient number, since it is larger than the sum of its proper divisors (58644889).

8940566347487 is a wasteful number, since it uses less digits than its factorization.

8940566347487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58644888.

The product of its (nonzero) digits is 975421440, while the sum is 71.

The spelling of 8940566347487 in words is "eight trillion, nine hundred forty billion, five hundred sixty-six million, three hundred forty-seven thousand, four hundred eighty-seven".