78585058587 has 32 divisors (see below), whose sum is σ = 121222923264. Its totient is φ = 44355024000.

The previous prime is 78585058579. The next prime is 78585058597.

78585058587 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78585058587 - 2³ = 78585058579 is a prime.

It is a super-2 number, since 2×78585058587² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78585058597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848938 + ... + 936944.

It is an arithmetic number, because the mean of its divisors is an integer number (3788216352).

Almost surely, 2^78585058587 is an apocalyptic number.

78585058587 is a deficient number, since it is larger than the sum of its proper divisors (42637864677).

78585058587 is a wasteful number, since it uses less digits than its factorization.

78585058587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88539.

The product of its (nonzero) digits is 125440000, while the sum is 66.

The spelling of 78585058587 in words is "seventy-eight billion, five hundred eighty-five million, fifty-eight thousand, five hundred eighty-seven".