2442764321538 has 16 divisors (see below), whose sum is σ = 5172912681120. Its totient is φ = 766357434176.

The previous prime is 2442764321537. The next prime is 2442764321539. The reversal of 2442764321538 is 8351234672442.

It is an interprime number because it is at equal distance from previous prime (2442764321537) and next prime (2442764321539).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2442764321533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11974334808 + ... + 11974335011.

It is an arithmetic number, because the mean of its divisors is an integer number (323307042570).

Almost surely, 2^{2442764321538} is an apocalyptic number.

2442764321538 is an abundant number, since it is smaller than the sum of its proper divisors (2730148359582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2442764321538 is a wasteful number, since it uses less digits than its factorization.

2442764321538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23948669841.

The product of its digits is 7741440, while the sum is 51.

The spelling of 2442764321538 in words is "two trillion, four hundred forty-two billion, seven hundred sixty-four million, three hundred twenty-one thousand, five hundred thirty-eight".