544140505477 has 2 divisors, whose sum is σ = 544140505478. Its totient is φ = 544140505476.

The previous prime is 544140505463. The next prime is 544140505543. The reversal of 544140505477 is 774505041445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445862017441 + 98278488036 = 667729^2 + 313494^2 .

It is a cyclic number.

It is not a de Polignac number, because 544140505477 - 2¹¹ = 544140503429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544140505177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272070252738 + 272070252739.

It is an arithmetic number, because the mean of its divisors is an integer number (272070252739).

Almost surely, 2^544140505477 is an apocalyptic number.

It is an amenable number.

544140505477 is a deficient number, since it is larger than the sum of its proper divisors (1).

544140505477 is an equidigital number, since it uses as much as digits as its factorization.

544140505477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568000, while the sum is 46.

The spelling of 544140505477 in words is "five hundred forty-four billion, one hundred forty million, five hundred five thousand, four hundred seventy-seven".