45444231115 has 4 divisors (see below), whose sum is σ = 54533077344. Its totient is φ = 36355384888.

The previous prime is 45444231113. The next prime is 45444231127. The reversal of 45444231115 is 51113244454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51113244454 = 2 ⋅25556622227.

It is a cyclic number.

It is not a de Polignac number, because 45444231115 - 2¹ = 45444231113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45444231113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4544423107 + ... + 4544423116.

It is an arithmetic number, because the mean of its divisors is an integer number (13633269336).

Almost surely, 2^45444231115 is an apocalyptic number.

45444231115 is a deficient number, since it is larger than the sum of its proper divisors (9088846229).

45444231115 is an equidigital number, since it uses as much as digits as its factorization.

45444231115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088846228.

The product of its digits is 38400, while the sum is 34.

Adding to 45444231115 its reverse (51113244454), we get a palindrome (96557475569).

The spelling of 45444231115 in words is "forty-five billion, four hundred forty-four million, two hundred thirty-one thousand, one hundred fifteen".