44424253157 has 4 divisors (see below), whose sum is σ = 44475730560. Its totient is φ = 44372775756.

The previous prime is 44424253151. The next prime is 44424253177. The reversal of 44424253157 is 75135242444.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44424253157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44424253151) 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, 25737407 + ... + 25739132.

It is an arithmetic number, because the mean of its divisors is an integer number (11118932640).

Almost surely, 2^44424253157 is an apocalyptic number.

It is an amenable number.

44424253157 is a deficient number, since it is larger than the sum of its proper divisors (51477403).

44424253157 is an equidigital number, since it uses as much as digits as its factorization.

44424253157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51477402.

The product of its digits is 537600, while the sum is 41.

The spelling of 44424253157 in words is "forty-four billion, four hundred twenty-four million, two hundred fifty-three thousand, one hundred fifty-seven".