5372165891 has 4 divisors (see below), whose sum is σ = 5375649072. Its totient is φ = 5368682712.

The previous prime is 5372165879. The next prime is 5372165921. The reversal of 5372165891 is 1985612735.

5372165891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5372165891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5372165831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739276 + ... + 1742361.

It is an arithmetic number, because the mean of its divisors is an integer number (1343912268).

Almost surely, 2^5372165891 is an apocalyptic number.

5372165891 is a deficient number, since it is larger than the sum of its proper divisors (3483181).

5372165891 is a wasteful number, since it uses less digits than its factorization.

5372165891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483180.

The product of its digits is 453600, while the sum is 47.

The square root of 5372165891 is about 73295.0604815904. The cubic root of 5372165891 is about 1751.3910997253.

The spelling of 5372165891 in words is "five billion, three hundred seventy-two million, one hundred sixty-five thousand, eight hundred ninety-one".