78143228088 has 64 divisors (see below), whose sum is σ = 210881318400. Its totient is φ = 24056081280.

The previous prime is 78143228029. The next prime is 78143228129. The reversal of 78143228088 is 88082234187.

It is a super-2 number, since 2×78143228088² (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 78143228088.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424748 + ... + 2456763.

It is an arithmetic number, because the mean of its divisors is an integer number (3295020600).

Almost surely, 2^78143228088 is an apocalyptic number.

It is an amenable number.

78143228088 is an abundant number, since it is smaller than the sum of its proper divisors (132738090312).

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

78143228088 is a wasteful number, since it uses less digits than its factorization.

78143228088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881572 (or 4881568 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 51.

The spelling of 78143228088 in words is "seventy-eight billion, one hundred forty-three million, two hundred twenty-eight thousand, eighty-eight".