7021285000 has 40 divisors (see below), whose sum is σ = 16450882470. Its totient is φ = 2808512000.

The previous prime is 7021284989. The next prime is 7021285079. The reversal of 7021285000 is 5821207.

It can be written as a sum of positive squares in 5 ways, for example, as 1385179524 + 5636105476 = 37218^2 + 75074^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 697129 + ... + 707128.

Almost surely, 2^7021285000 is an apocalyptic number.

It is an amenable number.

7021285000 is an abundant number, since it is smaller than the sum of its proper divisors (9429597470).

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

7021285000 is a wasteful number, since it uses less digits than its factorization.

7021285000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404283 (or 1404264 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7021285000 is about 83793.1083084999. The cubic root of 7021285000 is about 1914.8681132712.

The spelling of 7021285000 in words is "seven billion, twenty-one million, two hundred eighty-five thousand".