7446978000 has 960 divisors, whose sum is σ = 33797836800. Its totient is φ = 1539648000.

The previous prime is 7446977999. The next prime is 7446978001. The reversal of 7446978000 is 8796447.

It is an interprime number because it is at equal distance from previous prime (7446977999) and next prime (7446978001).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7446978001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 37421901 + ... + 37422099.

It is an arithmetic number, because the mean of its divisors is an integer number (35206080).

Almost surely, 2^7446978000 is an apocalyptic number.

7446978000 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 7446978000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16898918400).

7446978000 is an abundant number, since it is smaller than the sum of its proper divisors (26350858800).

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

7446978000 is a wasteful number, since it uses less digits than its factorization.

7446978000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 7446978000 is about 86295.8747565606. The cubic root of 7446978000 is about 1952.8101495251.

The spelling of 7446978000 in words is "seven billion, four hundred forty-six million, nine hundred seventy-eight thousand".