2644768354461 has 24 divisors (see below), whose sum is σ = 3587662448160. Its totient is φ = 1733041895904.

The previous prime is 2644768354433. The next prime is 2644768354463. The reversal of 2644768354461 is 1644538674462.

It is not a de Polignac number, because 2644768354461 - 2³⁹ = 2095012540573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2644768354395 and 2644768354404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644768354463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95111386 + ... + 95139188.

It is an arithmetic number, because the mean of its divisors is an integer number (149485935340).

Almost surely, 2^{2644768354461} is an apocalyptic number.

It is an amenable number.

2644768354461 is a deficient number, since it is larger than the sum of its proper divisors (942894093699).

2644768354461 is an equidigital number, since it uses as much as digits as its factorization.

2644768354461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37033 (or 36974 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 60.

The spelling of 2644768354461 in words is "two trillion, six hundred forty-four billion, seven hundred sixty-eight million, three hundred fifty-four thousand, four hundred sixty-one".