78524433142 has 4 divisors (see below), whose sum is σ = 117786649716. Its totient is φ = 39262216570.

The previous prime is 78524433137. The next prime is 78524433241. The reversal of 78524433142 is 24133442587.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19631108284 + ... + 19631108287.

It is an arithmetic number, because the mean of its divisors is an integer number (29446662429).

Almost surely, 2^78524433142 is an apocalyptic number.

78524433142 is a deficient number, since it is larger than the sum of its proper divisors (39262216574).

78524433142 is a wasteful number, since it uses less digits than its factorization.

78524433142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39262216573.

The product of its digits is 645120, while the sum is 43.

The spelling of 78524433142 in words is "seventy-eight billion, five hundred twenty-four million, four hundred thirty-three thousand, one hundred forty-two".