78563441542 has 8 divisors (see below), whose sum is σ = 120352506336. Its totient is φ = 38445939432.

The previous prime is 78563441533. The next prime is 78563441569. The reversal of 78563441542 is 24514436587.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 417890553 + ... + 417890740.

It is an arithmetic number, because the mean of its divisors is an integer number (15044063292).

Almost surely, 2^78563441542 is an apocalyptic number.

78563441542 is a deficient number, since it is larger than the sum of its proper divisors (41789064794).

78563441542 is a wasteful number, since it uses less digits than its factorization.

78563441542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835781342.

The product of its digits is 3225600, while the sum is 49.

The spelling of 78563441542 in words is "seventy-eight billion, five hundred sixty-three million, four hundred forty-one thousand, five hundred forty-two".