6422780700 has 432 divisors, whose sum is σ = 23749479936. Its totient is φ = 1421683200.

The previous prime is 6422780687. The next prime is 6422780701. The reversal of 6422780700 is 70872246.

6422780700 is a `hidden beast` number, since 642 + 2 + 7 + 8 + 0 + 7 + 0 + 0 = 666.

It is a super-2 number, since 2×6422780700² = 82504223840584980000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6422780701) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 37125814 + ... + 37125986.

It is an arithmetic number, because the mean of its divisors is an integer number (54975648).

Almost surely, 2^6422780700 is an apocalyptic number.

6422780700 is a gapful number since it is divisible by the number (60) 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 6422780700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11874739968).

6422780700 is an abundant number, since it is smaller than the sum of its proper divisors (17326699236).

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

6422780700 is a wasteful number, since it uses less digits than its factorization.

6422780700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 6422780700 is about 80142.2529007015. The cubic root of 6422780700 is about 1858.8358132763.

The spelling of 6422780700 in words is "six billion, four hundred twenty-two million, seven hundred eighty thousand, seven hundred".