78588255288587 has 4 divisors (see below), whose sum is σ = 85732642133016. Its totient is φ = 71443868444160.

The previous prime is 78588255288581. The next prime is 78588255288661.

78588255288587 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78588255288587 - 2⁶ = 78588255288523 is a prime.

It is a super-2 number, since 2×78588255288587² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78588255288499 and 78588255288508.

It is not an unprimeable number, because it can be changed into a prime (78588255288581) 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, 3572193422198 + ... + 3572193422219.

It is an arithmetic number, because the mean of its divisors is an integer number (21433160533254).

Almost surely, 2^{78588255288587} is an apocalyptic number.

78588255288587 is a deficient number, since it is larger than the sum of its proper divisors (7144386844429).

78588255288587 is a wasteful number, since it uses less digits than its factorization.

78588255288587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7144386844428.

The product of its digits is 32112640000, while the sum is 86.

The spelling of 78588255288587 in words is "seventy-eight trillion, five hundred eighty-eight billion, two hundred fifty-five million, two hundred eighty-eight thousand, five hundred eighty-seven".