7197219864 has 48 divisors (see below), whose sum is σ = 19783416120. Its totient is φ = 2363264640.

The previous prime is 7197219847. The next prime is 7197219877. The reversal of 7197219864 is 4689127917.

It is a self number, because there is not a number n which added to its sum of digits gives 7197219864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741157 + ... + 750804.

Almost surely, 2^7197219864 is an apocalyptic number.

It is an amenable number.

7197219864 is an abundant number, since it is smaller than the sum of its proper divisors (12586196256).

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

7197219864 is a wasteful number, since it uses less digits than its factorization.

7197219864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492040 (or 1492033 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 7197219864 is about 84836.4300521893. The cubic root of 7197219864 is about 1930.7302009379.

The spelling of 7197219864 in words is "seven billion, one hundred ninety-seven million, two hundred nineteen thousand, eight hundred sixty-four".