78236063287 has 16 divisors (see below), whose sum is σ = 84461672448. Its totient is φ = 72256710240.

The previous prime is 78236063263. The next prime is 78236063291.

78236063287 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78236063287 is a prime.

It is a super-2 number, since 2×78236063287² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78236063687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192013 + ... + 439705.

It is an arithmetic number, because the mean of its divisors is an integer number (5278854528).

Almost surely, 2^78236063287 is an apocalyptic number.

78236063287 is a deficient number, since it is larger than the sum of its proper divisors (6225609161).

78236063287 is a wasteful number, since it uses less digits than its factorization.

78236063287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248190.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 78236063287 in words is "seventy-eight billion, two hundred thirty-six million, sixty-three thousand, two hundred eighty-seven".