78241322314287 has 32 divisors (see below), whose sum is σ = 126453943004160. Its totient is φ = 47417737815360.

The previous prime is 78241322314237. The next prime is 78241322314321.

78241322314287 is a `hidden beast` number, since 7 + 8 + 2 + 4 + 1 + 322 + 31 + 4 + 287 = 666.

78241322314287 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-78241322314287 is a prime.

It is a super-2 number, since 2×78241322314287² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78241322314237) 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, 7930923 + ... + 14811555.

It is an arithmetic number, because the mean of its divisors is an integer number (3951685718880).

Almost surely, 2^{78241322314287} is an apocalyptic number.

78241322314287 is a deficient number, since it is larger than the sum of its proper divisors (48212620689873).

78241322314287 is a wasteful number, since it uses less digits than its factorization.

78241322314287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918940 (or 6918934 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 78241322314287 in words is "seventy-eight trillion, two hundred forty-one billion, three hundred twenty-two million, three hundred fourteen thousand, two hundred eighty-seven".