545012771377 has 2 divisors, whose sum is σ = 545012771378. Its totient is φ = 545012771376.

The previous prime is 545012771363. The next prime is 545012771383. The reversal of 545012771377 is 773177210545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336126295696 + 208886475681 = 579764^2 + 457041^2 .

It is a cyclic number.

It is not a de Polignac number, because 545012771377 - 2¹⁵ = 545012738609 is a prime.

It is a super-2 number, since 2×545012771377² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545012771377.

It is not a weakly prime, because it can be changed into another prime (545012771477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272506385688 + 272506385689.

It is an arithmetic number, because the mean of its divisors is an integer number (272506385689).

Almost surely, 2^545012771377 is an apocalyptic number.

It is an amenable number.

545012771377 is a deficient number, since it is larger than the sum of its proper divisors (1).

545012771377 is an equidigital number, since it uses as much as digits as its factorization.

545012771377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440600, while the sum is 49.

The spelling of 545012771377 in words is "five hundred forty-five billion, twelve million, seven hundred seventy-one thousand, three hundred seventy-seven".