78472338784593 has 16 divisors (see below), whose sum is σ = 113944277583360. Its totient is φ = 47748078221184.

The previous prime is 78472338784549. The next prime is 78472338784639. The reversal of 78472338784593 is 39548783327487.

It is not a de Polignac number, because 78472338784593 - 2¹⁰ = 78472338783569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78472338784193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11303992321 + ... + 11303999262.

It is an arithmetic number, because the mean of its divisors is an integer number (7121517348960).

Almost surely, 2^{78472338784593} is an apocalyptic number.

It is an amenable number.

78472338784593 is a deficient number, since it is larger than the sum of its proper divisors (35471938798767).

78472338784593 is a wasteful number, since it uses less digits than its factorization.

78472338784593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22607991688.

The product of its digits is 6827950080, while the sum is 78.

The spelling of 78472338784593 in words is "seventy-eight trillion, four hundred seventy-two billion, three hundred thirty-eight million, seven hundred eighty-four thousand, five hundred ninety-three".