78282116670 has 128 divisors (see below), whose sum is σ = 202873724928. Its totient is φ = 19275379200.

The previous prime is 78282116659. The next prime is 78282116677. The reversal of 78282116670 is 7661128287.

It is a super-2 number, since 2×78282116670² (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 (78282116677) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9000844 + ... + 9009536.

It is an arithmetic number, because the mean of its divisors is an integer number (1584950976).

Almost surely, 2^78282116670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78282116670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101436862464).

78282116670 is an abundant number, since it is smaller than the sum of its proper divisors (124591608258).

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

78282116670 is a wasteful number, since it uses less digits than its factorization.

78282116670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 78282116670 in words is "seventy-eight billion, two hundred eighty-two million, one hundred sixteen thousand, six hundred seventy".