45188439049 has 16 divisors (see below), whose sum is σ = 49345459072. Its totient is φ = 41129036928.

The previous prime is 45188439047. The next prime is 45188439059. The reversal of 45188439049 is 94093488154.

It is a cyclic number.

It is not a de Polignac number, because 45188439049 - 2¹ = 45188439047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45188439047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6015754 + ... + 6023260.

It is an arithmetic number, because the mean of its divisors is an integer number (3084091192).

Almost surely, 2^45188439049 is an apocalyptic number.

It is an amenable number.

45188439049 is a deficient number, since it is larger than the sum of its proper divisors (4157020023).

45188439049 is a wasteful number, since it uses less digits than its factorization.

45188439049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13936.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 45188439049 in words is "forty-five billion, one hundred eighty-eight million, four hundred thirty-nine thousand, forty-nine".