44650000981 has 2 divisors, whose sum is σ = 44650000982. Its totient is φ = 44650000980.

The previous prime is 44650000979. The next prime is 44650001017. The reversal of 44650000981 is 18900005644.

It is a happy number.

44650000981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27345913956 + 17304087025 = 165366^2 + 131545^2 .

It is a cyclic number.

It is not a de Polignac number, because 44650000981 - 2¹ = 44650000979 is a prime.

It is a super-2 number, since 2×44650000981² (a number of 22 digits) contains 22 as substring.

Together with 44650000979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 44650000981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44650000961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22325000490 + 22325000491.

It is an arithmetic number, because the mean of its divisors is an integer number (22325000491).

Almost surely, 2^44650000981 is an apocalyptic number.

It is an amenable number.

44650000981 is a deficient number, since it is larger than the sum of its proper divisors (1).

44650000981 is an equidigital number, since it uses as much as digits as its factorization.

44650000981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 44650000981 in words is "forty-four billion, six hundred fifty million, nine hundred eighty-one", and thus it is an aban number.