78099413578 has 8 divisors (see below), whose sum is σ = 117581405760. Its totient is φ = 38905611660.

The previous prime is 78099413537. The next prime is 78099413599. The reversal of 78099413578 is 87531499087.

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

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, 72046888 + ... + 72047971.

It is an arithmetic number, because the mean of its divisors is an integer number (14697675720).

Almost surely, 2^78099413578 is an apocalyptic number.

78099413578 is a deficient number, since it is larger than the sum of its proper divisors (39481992182).

78099413578 is a wasteful number, since it uses less digits than its factorization.

78099413578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144095132.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 78099413578 in words is "seventy-eight billion, ninety-nine million, four hundred thirteen thousand, five hundred seventy-eight".