725338383091 has 4 divisors (see below), whose sum is σ = 828958152112. Its totient is φ = 621718614072.

The previous prime is 725338383089. The next prime is 725338383131. The reversal of 725338383091 is 190383833527.

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

It is a cyclic number.

It is not a de Polignac number, because 725338383091 - 2¹ = 725338383089 is a prime.

It is a super-3 number, since 3×725338383091³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725338383031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51809884500 + ... + 51809884513.

It is an arithmetic number, because the mean of its divisors is an integer number (207239538028).

Almost surely, 2^725338383091 is an apocalyptic number.

725338383091 is a deficient number, since it is larger than the sum of its proper divisors (103619769021).

725338383091 is a wasteful number, since it uses less digits than its factorization.

725338383091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103619769020.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 725338383091 in words is "seven hundred twenty-five billion, three hundred thirty-eight million, three hundred eighty-three thousand, ninety-one".