78858571442 has 16 divisors (see below), whose sum is σ = 135327998592. Its totient is φ = 33761061600.

The previous prime is 78858571439. The next prime is 78858571459. The reversal of 78858571442 is 24417585887.

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, 2941934 + ... + 2968617.

It is an arithmetic number, because the mean of its divisors is an integer number (8457999912).

Almost surely, 2^78858571442 is an apocalyptic number.

78858571442 is a deficient number, since it is larger than the sum of its proper divisors (56469427150).

78858571442 is a wasteful number, since it uses less digits than its factorization.

78858571442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911513.

The product of its digits is 20070400, while the sum is 59.

The spelling of 78858571442 in words is "seventy-eight billion, eight hundred fifty-eight million, five hundred seventy-one thousand, four hundred forty-two".