78124586488 has 32 divisors (see below), whose sum is σ = 157813992000. Its totient is φ = 36043233408.

The previous prime is 78124586431. The next prime is 78124586489. The reversal of 78124586488 is 88468542187.

It is a super-2 number, since 2×78124586488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78124586489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117745 + ... + 412447.

It is an arithmetic number, because the mean of its divisors is an integer number (4931687250).

Almost surely, 2^78124586488 is an apocalyptic number.

It is an amenable number.

78124586488 is an abundant number, since it is smaller than the sum of its proper divisors (79689405512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78124586488 is a wasteful number, since it uses less digits than its factorization.

78124586488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297271 (or 297267 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 61.

The spelling of 78124586488 in words is "seventy-eight billion, one hundred twenty-four million, five hundred eighty-six thousand, four hundred eighty-eight".