1147127857877 has 2 divisors, whose sum is σ = 1147127857878. Its totient is φ = 1147127857876.

The previous prime is 1147127857831. The next prime is 1147127857933. The reversal of 1147127857877 is 7787587217411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645763316836 + 501364541041 = 803594^2 + 708071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147127857877 - 2¹⁶ = 1147127792341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147127857817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573563928938 + 573563928939.

It is an arithmetic number, because the mean of its divisors is an integer number (573563928939).

Almost surely, 2^{1147127857877} is an apocalyptic number.

It is an amenable number.

1147127857877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147127857877 is an equidigital number, since it uses as much as digits as its factorization.

1147127857877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43025920, while the sum is 65.

The spelling of 1147127857877 in words is "one trillion, one hundred forty-seven billion, one hundred twenty-seven million, eight hundred fifty-seven thousand, eight hundred seventy-seven".