7195821420 has 96 divisors (see below), whose sum is σ = 20718786816. Its totient is φ = 1864684800.

The previous prime is 7195821407. The next prime is 7195821427. The reversal of 7195821420 is 241285917.

It is not an unprimeable number, because it can be changed into a prime (7195821427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420535 + ... + 2423505.

It is an arithmetic number, because the mean of its divisors is an integer number (215820696).

Almost surely, 2^7195821420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7195821420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10359393408).

7195821420 is an abundant number, since it is smaller than the sum of its proper divisors (13522965396).

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

7195821420 is a wasteful number, since it uses less digits than its factorization.

7195821420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111 (or 4109 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 7195821420 is about 84828.1876500966. The cubic root of 7195821420 is about 1930.6051437163.

The spelling of 7195821420 in words is "seven billion, one hundred ninety-five million, eight hundred twenty-one thousand, four hundred twenty".