2489691433 has 4 divisors (see below), whose sum is σ = 2489908608. Its totient is φ = 2489474260.

The previous prime is 2489691431. The next prime is 2489691439. The reversal of 2489691433 is 3341969842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3341969842 = 2 ⋅1670984921.

It is a cyclic number.

It is not a de Polignac number, because 2489691433 - 2¹ = 2489691431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2489691431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90373 + ... + 114658.

It is an arithmetic number, because the mean of its divisors is an integer number (622477152).

Almost surely, 2^2489691433 is an apocalyptic number.

It is an amenable number.

2489691433 is a deficient number, since it is larger than the sum of its proper divisors (217175).

2489691433 is a wasteful number, since it uses less digits than its factorization.

2489691433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217174.

The product of its digits is 1119744, while the sum is 49.

The square root of 2489691433 is about 49896.8078437890. The cubic root of 2489691433 is about 1355.3407880005.

The spelling of 2489691433 in words is "two billion, four hundred eighty-nine million, six hundred ninety-one thousand, four hundred thirty-three".