2421286779 has 8 divisors (see below), whose sum is σ = 3233328912. Its totient is φ = 1611717920.

The previous prime is 2421286709. The next prime is 2421286807. The reversal of 2421286779 is 9776821242.

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 2421286779 - 2²⁰ = 2420238203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421286709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616032 + ... + 619949.

It is an arithmetic number, because the mean of its divisors is an integer number (404166114).

Almost surely, 2^2421286779 is an apocalyptic number.

2421286779 is a deficient number, since it is larger than the sum of its proper divisors (812042133).

2421286779 is a wasteful number, since it uses less digits than its factorization.

2421286779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236637.

The product of its digits is 677376, while the sum is 48.

The square root of 2421286779 is about 49206.5725183130. The cubic root of 2421286779 is about 1342.8126077607.

The spelling of 2421286779 in words is "two billion, four hundred twenty-one million, two hundred eighty-six thousand, seven hundred seventy-nine".