457205117078077 has 2 divisors, whose sum is σ = 457205117078078. Its totient is φ = 457205117078076.

The previous prime is 457205117078071. The next prime is 457205117078081. The reversal of 457205117078077 is 770870711502754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273739473665476 + 183465643412601 = 16545074^2 + 13544949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457205117078077 is a prime.

It is a super-2 number, since 2×457205117078077² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457205117078071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228602558539038 + 228602558539039.

It is an arithmetic number, because the mean of its divisors is an integer number (228602558539039).

Almost surely, 2^{457205117078077} is an apocalyptic number.

It is an amenable number.

457205117078077 is a deficient number, since it is larger than the sum of its proper divisors (1).

457205117078077 is an equidigital number, since it uses as much as digits as its factorization.

457205117078077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26891200, while the sum is 61.

The spelling of 457205117078077 in words is "four hundred fifty-seven trillion, two hundred five billion, one hundred seventeen million, seventy-eight thousand, seventy-seven".