78853767489 has 96 divisors (see below), whose sum is σ = 141390643200. Its totient is φ = 43259559840.

The previous prime is 78853767467. The next prime is 78853767511. The reversal of 78853767489 is 98476735887.

78853767489 is a `hidden beast` number, since 7 + 8 + 8 + 537 + 6 + 7 + 4 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (78853767467) and next prime (78853767511).

It is not a de Polignac number, because 78853767489 - 2¹⁵ = 78853734721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78853767439) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5201082 + ... + 5216220.

It is an arithmetic number, because the mean of its divisors is an integer number (1472819200).

Almost surely, 2^78853767489 is an apocalyptic number.

It is an amenable number.

78853767489 is a deficient number, since it is larger than the sum of its proper divisors (62536875711).

78853767489 is a wasteful number, since it uses less digits than its factorization.

78853767489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320 (or 15307 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 72.

The spelling of 78853767489 in words is "seventy-eight billion, eight hundred fifty-three million, seven hundred sixty-seven thousand, four hundred eighty-nine".