2421206553979 has 8 divisors (see below), whose sum is σ = 2526674385312. Its totient is φ = 2315755221120.

The previous prime is 2421206553977. The next prime is 2421206554087. The reversal of 2421206553979 is 9793556021242.

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 2421206553979 - 2¹ = 2421206553977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421206553977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3824254 + ... + 4412179.

It is an arithmetic number, because the mean of its divisors is an integer number (315834298164).

Almost surely, 2^{2421206553979} is an apocalyptic number.

2421206553979 is a deficient number, since it is larger than the sum of its proper divisors (105467831333).

2421206553979 is a wasteful number, since it uses less digits than its factorization.

2421206553979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8249237.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 2421206553979 in words is "two trillion, four hundred twenty-one billion, two hundred six million, five hundred fifty-three thousand, nine hundred seventy-nine".