1825749479 has 2 divisors, whose sum is σ = 1825749480. Its totient is φ = 1825749478.

The previous prime is 1825749461. The next prime is 1825749529. The reversal of 1825749479 is 9749475281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1825749479 - 2¹⁶ = 1825683943 is a prime.

It is a super-4 number, since 4×1825749479⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825749979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912874739 + 912874740.

It is an arithmetic number, because the mean of its divisors is an integer number (912874740).

Almost surely, 2^1825749479 is an apocalyptic number.

1825749479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825749479 is an equidigital number, since it uses as much as digits as its factorization.

1825749479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 56.

The square root of 1825749479 is about 42728.7898143629. The cubic root of 1825749479 is about 1222.2134588264.

The spelling of 1825749479 in words is "one billion, eight hundred twenty-five million, seven hundred forty-nine thousand, four hundred seventy-nine".