2420339964921 has 32 divisors (see below), whose sum is σ = 3797728519680. Its totient is φ = 1518197960448.

The previous prime is 2420339964919. The next prime is 2420339964961. The reversal of 2420339964921 is 1294699330242.

2420339964921 is a `hidden beast` number, since 2 + 4 + 203 + 399 + 6 + 49 + 2 + 1 = 666.

It is not a de Polignac number, because 2420339964921 - 2¹ = 2420339964919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2420339964961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789955 + ... + 2337671.

It is an arithmetic number, because the mean of its divisors is an integer number (118679016240).

Almost surely, 2^{2420339964921} is an apocalyptic number.

It is an amenable number.

2420339964921 is a deficient number, since it is larger than the sum of its proper divisors (1377388554759).

2420339964921 is a wasteful number, since it uses less digits than its factorization.

2420339964921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551150 (or 1551144 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 2420339964921 in words is "two trillion, four hundred twenty billion, three hundred thirty-nine million, nine hundred sixty-four thousand, nine hundred twenty-one".