5397351444 has 18 divisors (see below), whose sum is σ = 13643305130. Its totient is φ = 1799117136.

The previous prime is 5397351391. The next prime is 5397351467. The reversal of 5397351444 is 4441537935.

5397351444 is a `hidden beast` number, since 5 + 3 + 97 + 3 + 514 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5050944900 + 346406544 = 71070^2 + 18612^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5397351444² = 58262805220097770272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5397351444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74963179 + ... + 74963250.

Almost surely, 2^5397351444 is an apocalyptic number.

It is an amenable number.

5397351444 is an abundant number, since it is smaller than the sum of its proper divisors (8245953686).

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

5397351444 is a wasteful number, since it uses less digits than its factorization.

5397351444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149926439 (or 149926434 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 5397351444 is about 73466.6689322444. The cubic root of 5397351444 is about 1754.1237654753.

The spelling of 5397351444 in words is "five billion, three hundred ninety-seven million, three hundred fifty-one thousand, four hundred forty-four".