45538241781 has 8 divisors (see below), whose sum is σ = 61318821024. Its totient is φ = 30058245200.

The previous prime is 45538241729. The next prime is 45538241789. The reversal of 45538241781 is 18714283554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45538241781 - 2⁹ = 45538241269 is a prime.

It is a super-2 number, since 2×45538241781² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45538241781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45538241789) 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 7 ways as a sum of consecutive naturals, for example, 75145311 + ... + 75145916.

It is an arithmetic number, because the mean of its divisors is an integer number (7664852628).

Almost surely, 2^45538241781 is an apocalyptic number.

It is an amenable number.

45538241781 is a deficient number, since it is larger than the sum of its proper divisors (15780579243).

45538241781 is a wasteful number, since it uses less digits than its factorization.

45538241781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150291331.

The product of its digits is 1075200, while the sum is 48.

The spelling of 45538241781 in words is "forty-five billion, five hundred thirty-eight million, two hundred forty-one thousand, seven hundred eighty-one".