78624806371 has 4 divisors (see below), whose sum is σ = 79190452600. Its totient is φ = 78059160144.

The previous prime is 78624806347. The next prime is 78624806417. The reversal of 78624806371 is 17360842687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17360842687 = 34963 ⋅496549.

It is a cyclic number.

It is not a de Polignac number, because 78624806371 - 2⁵ = 78624806339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78624809371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282822906 + ... + 282823183.

It is an arithmetic number, because the mean of its divisors is an integer number (19797613150).

Almost surely, 2^78624806371 is an apocalyptic number.

78624806371 is a deficient number, since it is larger than the sum of its proper divisors (565646229).

78624806371 is a wasteful number, since it uses less digits than its factorization.

78624806371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565646228.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 78624806371 in words is "seventy-eight billion, six hundred twenty-four million, eight hundred six thousand, three hundred seventy-one".