44121245457 has 4 divisors (see below), whose sum is σ = 58828327280. Its totient is φ = 29414163636.

The previous prime is 44121245423. The next prime is 44121245471. The reversal of 44121245457 is 75454212144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44121245457 - 2¹² = 44121241361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44121245057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7353540907 + ... + 7353540912.

It is an arithmetic number, because the mean of its divisors is an integer number (14707081820).

Almost surely, 2^44121245457 is an apocalyptic number.

It is an amenable number.

44121245457 is a deficient number, since it is larger than the sum of its proper divisors (14707081823).

44121245457 is a wasteful number, since it uses less digits than its factorization.

44121245457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14707081822.

The product of its digits is 179200, while the sum is 39.

The spelling of 44121245457 in words is "forty-four billion, one hundred twenty-one million, two hundred forty-five thousand, four hundred fifty-seven".