78825852887 has 4 divisors (see below), whose sum is σ = 78826420440. Its totient is φ = 78825285336.

The previous prime is 78825852883. The next prime is 78825852899.

78825852887 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 78825852887 - 2² = 78825852883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78825852883) 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, 79988 + ... + 405030.

It is an arithmetic number, because the mean of its divisors is an integer number (19706605110).

Almost surely, 2^78825852887 is an apocalyptic number.

78825852887 is a deficient number, since it is larger than the sum of its proper divisors (567553).

78825852887 is a wasteful number, since it uses less digits than its factorization.

78825852887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567552.

The product of its digits is 160563200, while the sum is 68.

The spelling of 78825852887 in words is "seventy-eight billion, eight hundred twenty-five million, eight hundred fifty-two thousand, eight hundred eighty-seven".