19397014722 has 54 divisors (see below), whose sum is σ = 44667587289. Its totient is φ = 6082186560.

The previous prime is 19397014697. The next prime is 19397014753. The reversal of 19397014722 is 22741079391.

19397014722 is a `hidden beast` number, since 1 + 93 + 97 + 0 + 1 + 472 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17752631121 + 1644383601 = 133239^2 + 40551^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=98481.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10044097 + ... + 10046027.

Almost surely, 2^19397014722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19397014722

19397014722 is an abundant number, since it is smaller than the sum of its proper divisors (25270572567).

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

19397014722 is an equidigital number, since it uses as much as digits as its factorization.

19397014722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904 (or 1953 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 19397014722 in words is "nineteen billion, three hundred ninety-seven million, fourteen thousand, seven hundred twenty-two".