45195847729 has 4 divisors (see below), whose sum is σ = 45205791984. Its totient is φ = 45185903476.

The previous prime is 45195847727. The next prime is 45195847771. The reversal of 45195847729 is 92774859154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45195847729 - 2¹ = 45195847727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45195847727) 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, 4965307 + ... + 4974400.

It is an arithmetic number, because the mean of its divisors is an integer number (11301447996).

Almost surely, 2^45195847729 is an apocalyptic number.

It is an amenable number.

45195847729 is a deficient number, since it is larger than the sum of its proper divisors (9944255).

45195847729 is an equidigital number, since it uses as much as digits as its factorization.

45195847729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944254.

The product of its digits is 25401600, while the sum is 61.

The spelling of 45195847729 in words is "forty-five billion, one hundred ninety-five million, eight hundred forty-seven thousand, seven hundred twenty-nine".