78008585801 has 4 divisors (see below), whose sum is σ = 78525199104. Its totient is φ = 77491972500.

The previous prime is 78008585773. The next prime is 78008585827. The reversal of 78008585801 is 10858580087.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10858580087 = 31 ⋅350276777.

It is a cyclic number.

It is not a de Polignac number, because 78008585801 - 2²² = 78004391497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78008585801.

It is not an unprimeable number, because it can be changed into a prime (78008585891) 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, 258306425 + ... + 258306726.

It is an arithmetic number, because the mean of its divisors is an integer number (19631299776).

Almost surely, 2^78008585801 is an apocalyptic number.

It is an amenable number.

78008585801 is a deficient number, since it is larger than the sum of its proper divisors (516613303).

78008585801 is a wasteful number, since it uses less digits than its factorization.

78008585801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516613302.

The product of its (nonzero) digits is 716800, while the sum is 50.

The spelling of 78008585801 in words is "seventy-eight billion, eight million, five hundred eighty-five thousand, eight hundred one".