45538241779 has 4 divisors (see below), whose sum is σ = 45737098960. Its totient is φ = 45339384600.

The previous prime is 45538241729. The next prime is 45538241789. The reversal of 45538241779 is 97714283554.

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 45538241779 - 2¹¹ = 45538239731 is a prime.

It is a super-2 number, since 2×45538241779² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45538241729) 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, 99428247 + ... + 99428704.

It is an arithmetic number, because the mean of its divisors is an integer number (11434274740).

Almost surely, 2^45538241779 is an apocalyptic number.

45538241779 is a deficient number, since it is larger than the sum of its proper divisors (198857181).

45538241779 is a wasteful number, since it uses less digits than its factorization.

45538241779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198857180.

The product of its digits is 8467200, while the sum is 55.

The spelling of 45538241779 in words is "forty-five billion, five hundred thirty-eight million, two hundred forty-one thousand, seven hundred seventy-nine".