877769181680 has 20 divisors (see below), whose sum is σ = 2040813347592. Its totient is φ = 351107672640.

The previous prime is 877769181673. The next prime is 877769181701. The reversal of 877769181680 is 86181967778.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 877769181680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486057306 + ... + 5486057465.

Almost surely, 2^877769181680 is an apocalyptic number.

877769181680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

877769181680 is an abundant number, since it is smaller than the sum of its proper divisors (1163044165912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

877769181680 is a wasteful number, since it uses less digits than its factorization.

877769181680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10972114784 (or 10972114778 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 68.

The spelling of 877769181680 in words is "eight hundred seventy-seven billion, seven hundred sixty-nine million, one hundred eighty-one thousand, six hundred eighty".