44161540477 has 2 divisors, whose sum is σ = 44161540478. Its totient is φ = 44161540476.

The previous prime is 44161540427. The next prime is 44161540567. The reversal of 44161540477 is 77404516144.

44161540477 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., 43535239801 + 626300676 = 208651^2 + 25026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44161540477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44161540427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22080770238 + 22080770239.

It is an arithmetic number, because the mean of its divisors is an integer number (22080770239).

Almost surely, 2^44161540477 is an apocalyptic number.

It is an amenable number.

44161540477 is a deficient number, since it is larger than the sum of its proper divisors (1).

44161540477 is an equidigital number, since it uses as much as digits as its factorization.

44161540477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 44161540477 in words is "forty-four billion, one hundred sixty-one million, five hundred forty thousand, four hundred seventy-seven".