2489773655 has 8 divisors (see below), whose sum is σ = 3006058992. Its totient is φ = 1979598528.

The previous prime is 2489773609. The next prime is 2489773669. The reversal of 2489773655 is 5563779842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2489773655 - 2⁶ = 2489773591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2489773655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526654 + ... + 1528283.

It is an arithmetic number, because the mean of its divisors is an integer number (375757374).

Almost surely, 2^2489773655 is an apocalyptic number.

2489773655 is a deficient number, since it is larger than the sum of its proper divisors (516285337).

2489773655 is a wasteful number, since it uses less digits than its factorization.

2489773655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055105.

The product of its digits is 12700800, while the sum is 56.

The square root of 2489773655 is about 49897.6317574291. The cubic root of 2489773655 is about 1355.3557078686.

The spelling of 2489773655 in words is "two billion, four hundred eighty-nine million, seven hundred seventy-three thousand, six hundred fifty-five".