887579776785 has 128 divisors (see below), whose sum is σ = 1647424880640. Its totient is φ = 404153266176.

The previous prime is 887579776777. The next prime is 887579776789. The reversal of 887579776785 is 587677975788.

887579776785 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 887579776785 - 2³ = 887579776777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 887579776698 and 887579776707.

It is not an unprimeable number, because it can be changed into a prime (887579776789) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 97499544 + ... + 97508646.

It is an arithmetic number, because the mean of its divisors is an integer number (12870506880).

Almost surely, 2^887579776785 is an apocalyptic number.

887579776785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

887579776785 is a deficient number, since it is larger than the sum of its proper divisors (759845103855).

887579776785 is a wasteful number, since it uses less digits than its factorization.

887579776785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9647.

The product of its digits is 11616998400, while the sum is 84.

The spelling of 887579776785 in words is "eight hundred eighty-seven billion, five hundred seventy-nine million, seven hundred seventy-six thousand, seven hundred eighty-five".