78471725744886 has 16 divisors (see below), whose sum is σ = 156944479910400. Its totient is φ = 26157070511528.

The previous prime is 78471725744767. The next prime is 78471725744911. The reversal of 78471725744886 is 68844752717487.

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, 41857146 + ... + 43691693.

It is an arithmetic number, because the mean of its divisors is an integer number (9809029994400).

Almost surely, 2^{78471725744886} is an apocalyptic number.

78471725744886 is an abundant number, since it is smaller than the sum of its proper divisors (78472754165514).

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

78471725744886 is a wasteful number, since it uses less digits than its factorization.

78471725744886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85701723.

The product of its digits is 4720558080, while the sum is 78.

The spelling of 78471725744886 in words is "seventy-eight trillion, four hundred seventy-one billion, seven hundred twenty-five million, seven hundred forty-four thousand, eight hundred eighty-six".