45391396291 has 4 divisors (see below), whose sum is σ = 45392090184. Its totient is φ = 45390702400.

The previous prime is 45391396279. The next prime is 45391396301. The reversal of 45391396291 is 19269319354.

45391396291 is digitally balanced in base 2, 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 not a de Polignac number, because 45391396291 - 2¹⁷ = 45391265219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45391396591) 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, 237265 + ... + 383506.

It is an arithmetic number, because the mean of its divisors is an integer number (11348022546).

Almost surely, 2^45391396291 is an apocalyptic number.

45391396291 is a deficient number, since it is larger than the sum of its proper divisors (693893).

45391396291 is an equidigital number, since it uses as much as digits as its factorization.

45391396291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693892.

The product of its digits is 1574640, while the sum is 52.

The spelling of 45391396291 in words is "forty-five billion, three hundred ninety-one million, three hundred ninety-six thousand, two hundred ninety-one".