1361864479 has 2 divisors, whose sum is σ = 1361864480. Its totient is φ = 1361864478.

The previous prime is 1361864411. The next prime is 1361864573. The reversal of 1361864479 is 9744681631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361864479 - 2¹⁷ = 1361733407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361864279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680932239 + 680932240.

It is an arithmetic number, because the mean of its divisors is an integer number (680932240).

Almost surely, 2^1361864479 is an apocalyptic number.

1361864479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361864479 is an equidigital number, since it uses as much as digits as its factorization.

1361864479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 1361864479 is about 36903.4480638327. The cubic root of 1361864479 is about 1108.4377229256.

The spelling of 1361864479 in words is "one billion, three hundred sixty-one million, eight hundred sixty-four thousand, four hundred seventy-nine".