44545121507 has 8 divisors (see below), whose sum is σ = 45179259840. Its totient is φ = 43914769600.

The previous prime is 44545121447. The next prime is 44545121549. The reversal of 44545121507 is 70512154544.

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 44545121507 - 2¹² = 44545117411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44545121597) 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, 922907 + ... + 969972.

It is an arithmetic number, because the mean of its divisors is an integer number (5647407480).

Almost surely, 2^44545121507 is an apocalyptic number.

44545121507 is a deficient number, since it is larger than the sum of its proper divisors (634138333).

44545121507 is a wasteful number, since it uses less digits than its factorization.

44545121507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893213.

The product of its (nonzero) digits is 112000, while the sum is 38.

The spelling of 44545121507 in words is "forty-four billion, five hundred forty-five million, one hundred twenty-one thousand, five hundred seven".