78286829476 has 24 divisors (see below), whose sum is σ = 146297975040. Its totient is φ = 36574490400.

The previous prime is 78286829473. The next prime is 78286829477. The reversal of 78286829476 is 67492868287.

It is a super-2 number, since 2×78286829476² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78286829473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10881670 + ... + 10888861.

It is an arithmetic number, because the mean of its divisors is an integer number (6095748960).

Almost surely, 2^78286829476 is an apocalyptic number.

It is an amenable number.

78286829476 is a deficient number, since it is larger than the sum of its proper divisors (68011145564).

78286829476 is a wasteful number, since it uses less digits than its factorization.

78286829476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770595 (or 21770593 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 67.

The spelling of 78286829476 in words is "seventy-eight billion, two hundred eighty-six million, eight hundred twenty-nine thousand, four hundred seventy-six".