44542971911 has 2 divisors, whose sum is σ = 44542971912. Its totient is φ = 44542971910.

The previous prime is 44542971901. The next prime is 44542971937. The reversal of 44542971911 is 11917924544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44542971911 - 2²² = 44538777607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44542971901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22271485955 + 22271485956.

It is an arithmetic number, because the mean of its divisors is an integer number (22271485956).

Almost surely, 2^44542971911 is an apocalyptic number.

44542971911 is a deficient number, since it is larger than the sum of its proper divisors (1).

44542971911 is an equidigital number, since it uses as much as digits as its factorization.

44542971911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The spelling of 44542971911 in words is "forty-four billion, five hundred forty-two million, nine hundred seventy-one thousand, nine hundred eleven".