44001400061 has 2 divisors, whose sum is σ = 44001400062. Its totient is φ = 44001400060.

The previous prime is 44001400049. The next prime is 44001400063. The reversal of 44001400061 is 16000410044.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34415815225 + 9585584836 = 185515^2 + 97906^2 .

It is a cyclic number.

It is not a de Polignac number, because 44001400061 - 2⁶ = 44001399997 is a prime.

It is a super-2 number, since 2×44001400061² (a number of 22 digits) contains 22 as substring.

Together with 44001400063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44001400063) 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 as a sum of consecutive naturals, namely, 22000700030 + 22000700031.

It is an arithmetic number, because the mean of its divisors is an integer number (22000700031).

Almost surely, 2^44001400061 is an apocalyptic number.

It is an amenable number.

44001400061 is a deficient number, since it is larger than the sum of its proper divisors (1).

44001400061 is an equidigital number, since it uses as much as digits as its factorization.

44001400061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The spelling of 44001400061 in words is "forty-four billion, one million, four hundred thousand, sixty-one".