2445678765442 has 24 divisors (see below), whose sum is σ = 4072262310396. Its totient is φ = 1100665500000.

The previous prime is 2445678765433. The next prime is 2445678765449.

It is a happy number.

2445678765442 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1917308239561 + 528370525881 = 1384669^2 + 726891^2 .

It is not an unprimeable number, because it can be changed into a prime (2445678765449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50005809 + ... + 50054692.

Almost surely, 2^{2445678765442} is an apocalyptic number.

2445678765442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2445678765442 is a deficient number, since it is larger than the sum of its proper divisors (1626583544954).

2445678765442 is a wasteful number, since it uses less digits than its factorization.

2445678765442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100060626 (or 100060615 counting only the distinct ones).

The product of its digits is 361267200, while the sum is 64.

The spelling of 2445678765442 in words is "two trillion, four hundred forty-five billion, six hundred seventy-eight million, seven hundred sixty-five thousand, four hundred forty-two".