45444539984 has 10 divisors (see below), whose sum is σ = 88048796250. Its totient is φ = 22722269984.

The previous prime is 45444539983. The next prime is 45444540049. The reversal of 45444539984 is 48993544454.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26527288384 + 18917251600 = 162872^2 + 137540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45444539983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420141859 + ... + 1420141890.

It is an arithmetic number, because the mean of its divisors is an integer number (8804879625).

Almost surely, 2^45444539984 is an apocalyptic number.

It is an amenable number.

45444539984 is a deficient number, since it is larger than the sum of its proper divisors (42604256266).

45444539984 is a wasteful number, since it uses less digits than its factorization.

45444539984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840283757 (or 2840283751 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 59.

The spelling of 45444539984 in words is "forty-five billion, four hundred forty-four million, five hundred thirty-nine thousand, nine hundred eighty-four".