77146084685 has 16 divisors (see below), whose sum is σ = 96609988224. Its totient is φ = 59027614272.

The previous prime is 77146084657. The next prime is 77146084703. The reversal of 77146084685 is 58648064177.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 77146084685 - 2⁶ = 77146084621 is a prime.

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 77146084685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375859 + ... + 1430831.

It is an arithmetic number, because the mean of its divisors is an integer number (6038124264).

Almost surely, 2^77146084685 is an apocalyptic number.

It is an amenable number.

77146084685 is a deficient number, since it is larger than the sum of its proper divisors (19463903539).

77146084685 is a wasteful number, since it uses less digits than its factorization.

77146084685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67204.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 77146084685 in words is "seventy-seven billion, one hundred forty-six million, eighty-four thousand, six hundred eighty-five".