2722649465646 has 80 divisors (see below), whose sum is σ = 6668704944000. Its totient is φ = 823391626320.

The previous prime is 2722649465633. The next prime is 2722649465677. The reversal of 2722649465646 is 6465649462272.

2722649465646 is a `hidden beast` number, since 2 + 7 + 2 + 2 + 64 + 9 + 4 + 6 + 564 + 6 = 666.

It is a super-2 number, since 2×2722649465646² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 641706 + ... + 2420141.

It is an arithmetic number, because the mean of its divisors is an integer number (83358811800).

Almost surely, 2^{2722649465646} is an apocalyptic number.

2722649465646 is an abundant number, since it is smaller than the sum of its proper divisors (3946055478354).

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

2722649465646 is a wasteful number, since it uses less digits than its factorization.

2722649465646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062371 (or 3062362 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 63.

The spelling of 2722649465646 in words is "two trillion, seven hundred twenty-two billion, six hundred forty-nine million, four hundred sixty-five thousand, six hundred forty-six".