2646349319644 has 6 divisors (see below), whose sum is σ = 4631111309384. Its totient is φ = 1323174659820.

The previous prime is 2646349319609. The next prime is 2646349319657. The reversal of 2646349319644 is 4469139436462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330793664952 + ... + 330793664959.

Almost surely, 2^{2646349319644} is an apocalyptic number.

It is an amenable number.

2646349319644 is a deficient number, since it is larger than the sum of its proper divisors (1984761989740).

2646349319644 is a wasteful number, since it uses less digits than its factorization.

2646349319644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661587329915 (or 661587329913 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 61.

The spelling of 2646349319644 in words is "two trillion, six hundred forty-six billion, three hundred forty-nine million, three hundred nineteen thousand, six hundred forty-four".