45444441531 has 8 divisors (see below), whose sum is σ = 64156858704. Its totient is φ = 28514159360.

The previous prime is 45444441457. The next prime is 45444441557. The reversal of 45444441531 is 13514444454.

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 45444441531 - 2⁷ = 45444441403 is a prime.

It is a super-2 number, since 2×45444441531² (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 45444441531.

It is not an unprimeable number, because it can be changed into a prime (45444441131) 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, 445533690 + ... + 445533791.

It is an arithmetic number, because the mean of its divisors is an integer number (8019607338).

Almost surely, 2^45444441531 is an apocalyptic number.

45444441531 is a deficient number, since it is larger than the sum of its proper divisors (18712417173).

45444441531 is a wasteful number, since it uses less digits than its factorization.

45444441531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891067501.

The product of its digits is 307200, while the sum is 39.

Adding to 45444441531 its reverse (13514444454), we get a palindrome (58958885985).

The spelling of 45444441531 in words is "forty-five billion, four hundred forty-four million, four hundred forty-one thousand, five hundred thirty-one".