1798544057 has 2 divisors, whose sum is σ = 1798544058. Its totient is φ = 1798544056.

The previous prime is 1798544021. The next prime is 1798544093. The reversal of 1798544057 is 7504458971.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1798544021) and next prime (1798544093).

It can be written as a sum of positive squares in only one way, i.e., 1630867456 + 167676601 = 40384^2 + 12949^2 .

It is a cyclic number.

It is not a de Polignac number, because 1798544057 - 2⁶ = 1798543993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1798543996 and 1798544014.

It is not a weakly prime, because it can be changed into another prime (1798564057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899272028 + 899272029.

It is an arithmetic number, because the mean of its divisors is an integer number (899272029).

Almost surely, 2^1798544057 is an apocalyptic number.

It is an amenable number.

1798544057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1798544057 is an equidigital number, since it uses as much as digits as its factorization.

1798544057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The square root of 1798544057 is about 42409.2449472989. The cubic root of 1798544057 is about 1216.1123351124.

The spelling of 1798544057 in words is "one billion, seven hundred ninety-eight million, five hundred forty-four thousand, fifty-seven".