6402521202 has 96 divisors (see below), whose sum is σ = 16774262784. Its totient is φ = 1609322400.

The previous prime is 6402521161. The next prime is 6402521207. The reversal of 6402521202 is 2021252046.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6402521207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68323 + ... + 132185.

It is an arithmetic number, because the mean of its divisors is an integer number (174731904).

Almost surely, 2^6402521202 is an apocalyptic number.

6402521202 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6402521202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8387131392).

6402521202 is an abundant number, since it is smaller than the sum of its proper divisors (10371741582).

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

6402521202 is a wasteful number, since it uses less digits than its factorization.

6402521202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63924 (or 63917 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 6402521202 is about 80015.7559609356. The cubic root of 6402521202 is about 1856.8793010850.

Adding to 6402521202 its reverse (2021252046), we get a palindrome (8423773248).

The spelling of 6402521202 in words is "six billion, four hundred two million, five hundred twenty-one thousand, two hundred two".