45243042540 has 48 divisors (see below), whose sum is σ = 129626585088. Its totient is φ = 11784233664.

The previous prime is 45243042529. The next prime is 45243042571. The reversal of 45243042540 is 4524034254.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8765452 + ... + 8770611.

It is an arithmetic number, because the mean of its divisors is an integer number (2700553856).

Almost surely, 2^45243042540 is an apocalyptic number.

It is an amenable number.

45243042540 is an abundant number, since it is smaller than the sum of its proper divisors (84383542548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45243042540 is a wasteful number, since it uses less digits than its factorization.

45243042540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17536118 (or 17536116 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 45243042540 its reverse (4524034254), we get a palindrome (49767076794).

The spelling of 45243042540 in words is "forty-five billion, two hundred forty-three million, forty-two thousand, five hundred forty".