7864220010 has 64 divisors (see below), whose sum is σ = 19384012800. Its totient is φ = 2040973632.

The previous prime is 7864220003. The next prime is 7864220041. The reversal of 7864220010 is 100224687.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 7864220010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236811 + ... + 267969.

It is an arithmetic number, because the mean of its divisors is an integer number (302875200).

Almost surely, 2^7864220010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7864220010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9692006400).

7864220010 is an abundant number, since it is smaller than the sum of its proper divisors (11519792790).

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

7864220010 is a wasteful number, since it uses less digits than its factorization.

7864220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31395.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 7864220010 is about 88680.4375834941. The cubic root of 7864220010 is about 1988.6203757100.

Adding to 7864220010 its reverse (100224687), we get a palindrome (7964444697).

The spelling of 7864220010 in words is "seven billion, eight hundred sixty-four million, two hundred twenty thousand, ten".