325140005491 has 4 divisors (see below), whose sum is σ = 371588577712. Its totient is φ = 278691433272.

The previous prime is 325140005467. The next prime is 325140005497. The reversal of 325140005491 is 194500041523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194500041523 = 37 ⋅5256757879.

It is not a de Polignac number, because 325140005491 - 2¹¹ = 325140003443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325140005497) 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, 23224286100 + ... + 23224286113.

It is an arithmetic number, because the mean of its divisors is an integer number (92897144428).

Almost surely, 2^325140005491 is an apocalyptic number.

325140005491 is a deficient number, since it is larger than the sum of its proper divisors (46448572221).

325140005491 is an equidigital number, since it uses as much as digits as its factorization.

325140005491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46448572220.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 325140005491 in words is "three hundred twenty-five billion, one hundred forty million, five thousand, four hundred ninety-one".