1853144880877 has 2 divisors, whose sum is σ = 1853144880878. Its totient is φ = 1853144880876.

The previous prime is 1853144880869. The next prime is 1853144880901. The reversal of 1853144880877 is 7780884413581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1607940658116 + 245204222761 = 1268046^2 + 495181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853144880877 - 2³ = 1853144880869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1853144880827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926572440438 + 926572440439.

It is an arithmetic number, because the mean of its divisors is an integer number (926572440439).

Almost surely, 2^{1853144880877} is an apocalyptic number.

It is an amenable number.

1853144880877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853144880877 is an equidigital number, since it uses as much as digits as its factorization.

1853144880877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48168960, while the sum is 64.

The spelling of 1853144880877 in words is "one trillion, eight hundred fifty-three billion, one hundred forty-four million, eight hundred eighty thousand, eight hundred seventy-seven".