78655584055782 has 16 divisors (see below), whose sum is σ = 160279303359600. Its totient is φ = 25723838810592.

The previous prime is 78655584055753. The next prime is 78655584055831. The reversal of 78655584055782 is 28755048555687.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123672301657 + ... + 123672302292.

It is an arithmetic number, because the mean of its divisors is an integer number (10017456459975).

Almost surely, 2^{78655584055782} is an apocalyptic number.

78655584055782 is an abundant number, since it is smaller than the sum of its proper divisors (81623719303818).

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

78655584055782 is a wasteful number, since it uses less digits than its factorization.

78655584055782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247344604007.

The product of its (nonzero) digits is 3763200000, while the sum is 75.

The spelling of 78655584055782 in words is "seventy-eight trillion, six hundred fifty-five billion, five hundred eighty-four million, fifty-five thousand, seven hundred eighty-two".