545012771257 has 2 divisors, whose sum is σ = 545012771258. Its totient is φ = 545012771256.

The previous prime is 545012771231. The next prime is 545012771333. The reversal of 545012771257 is 752177210545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361701205056 + 183311566201 = 601416^2 + 428149^2 .

It is a cyclic number.

It is not a de Polignac number, because 545012771257 - 2²³ = 545004382649 is a prime.

It is not a weakly prime, because it can be changed into another prime (545112771257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272506385628 + 272506385629.

It is an arithmetic number, because the mean of its divisors is an integer number (272506385629).

Almost surely, 2^545012771257 is an apocalyptic number.

It is an amenable number.

545012771257 is a deficient number, since it is larger than the sum of its proper divisors (1).

545012771257 is an equidigital number, since it uses as much as digits as its factorization.

545012771257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686000, while the sum is 46.

The spelling of 545012771257 in words is "five hundred forty-five billion, twelve million, seven hundred seventy-one thousand, two hundred fifty-seven".