45190765549 has 4 divisors (see below), whose sum is σ = 45191822940. Its totient is φ = 45189708160.

The previous prime is 45190765541. The next prime is 45190765573. The reversal of 45190765549 is 94556709154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44045416900 + 1145348649 = 209870^2 + 33843^2 .

It is a cyclic number.

It is not a de Polignac number, because 45190765549 - 2³ = 45190765541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45190765549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45190765541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461764 + ... + 551005.

It is an arithmetic number, because the mean of its divisors is an integer number (11297955735).

Almost surely, 2^45190765549 is an apocalyptic number.

It is an amenable number.

45190765549 is a deficient number, since it is larger than the sum of its proper divisors (1057391).

45190765549 is a wasteful number, since it uses less digits than its factorization.

45190765549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057390.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 45190765549 in words is "forty-five billion, one hundred ninety million, seven hundred sixty-five thousand, five hundred forty-nine".