8785660987641 has 16 divisors (see below), whose sum is σ = 11986757956800. Its totient is φ = 5720838392640.

The previous prime is 8785660987639. The next prime is 8785660987657. The reversal of 8785660987641 is 1467890665878.

It is not a de Polignac number, because 8785660987641 - 2¹ = 8785660987639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8785660987541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15461635 + ... + 16019783.

It is an arithmetic number, because the mean of its divisors is an integer number (749172372300).

Almost surely, 2^{8785660987641} is an apocalyptic number.

It is an amenable number.

8785660987641 is a deficient number, since it is larger than the sum of its proper divisors (3201096969159).

8785660987641 is a wasteful number, since it uses less digits than its factorization.

8785660987641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680216.

The product of its (nonzero) digits is 975421440, while the sum is 75.

The spelling of 8785660987641 in words is "eight trillion, seven hundred eighty-five billion, six hundred sixty million, nine hundred eighty-seven thousand, six hundred forty-one".