78264340000 has 240 divisors, whose sum is σ = 240057107136. Its totient is φ = 24393600000.

The previous prime is 78264339997. The next prime is 78264340001. The reversal of 78264340000 is 4346287.

It is a super-2 number, since 2×78264340000² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78264340001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1514590 + ... + 1565410.

Almost surely, 2^78264340000 is an apocalyptic number.

78264340000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78264340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120028553568).

78264340000 is an abundant number, since it is smaller than the sum of its proper divisors (161792767136).

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

78264340000 is a wasteful number, since it uses less digits than its factorization.

78264340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50869 (or 50846 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 78264340000 its reverse (4346287), we get a palindrome (78268686287).

The spelling of 78264340000 in words is "seventy-eight billion, two hundred sixty-four million, three hundred forty thousand".