2628440264442 has 32 divisors (see below), whose sum is σ = 5399690266944. Its totient is φ = 852351552000.

The previous prime is 2628440264413. The next prime is 2628440264449. The reversal of 2628440264442 is 2444620448262.

It is a junction number, because it is equal to n+sod(n) for n = 2628440264391 and 2628440264400.

It is not an unprimeable number, because it can be changed into a prime (2628440264449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846442 + ... + 2444042.

It is an arithmetic number, because the mean of its divisors is an integer number (168740320842).

Almost surely, 2^{2628440264442} is an apocalyptic number.

2628440264442 is an abundant number, since it is smaller than the sum of its proper divisors (2771250002502).

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

2628440264442 is a wasteful number, since it uses less digits than its factorization.

2628440264442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605054.

The product of its (nonzero) digits is 4718592, while the sum is 48.

The spelling of 2628440264442 in words is "two trillion, six hundred twenty-eight billion, four hundred forty million, two hundred sixty-four thousand, four hundred forty-two".