78483986488 has 32 divisors (see below), whose sum is σ = 151160744160. Its totient is φ = 38174820480.

The previous prime is 78483986467. The next prime is 78483986501. The reversal of 78483986488 is 88468938487.

It is a super-2 number, since 2×78483986488² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78483986488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000178 + ... + 2039038.

It is an arithmetic number, because the mean of its divisors is an integer number (4723773255).

Almost surely, 2^78483986488 is an apocalyptic number.

It is an amenable number.

78483986488 is a deficient number, since it is larger than the sum of its proper divisors (72676757672).

78483986488 is a wasteful number, since it uses less digits than its factorization.

78483986488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45727 (or 45723 counting only the distinct ones).

The product of its digits is 594542592, while the sum is 73.

The spelling of 78483986488 in words is "seventy-eight billion, four hundred eighty-three million, nine hundred eighty-six thousand, four hundred eighty-eight".