2649289193388 has 72 divisors (see below), whose sum is σ = 6978306797280. Its totient is φ = 846421067520.

The previous prime is 2649289193339. The next prime is 2649289193393. The reversal of 2649289193388 is 8833919829462.

2649289193388 is a `hidden beast` number, since 2 + 6 + 4 + 9 + 289 + 1 + 9 + 338 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9118408 + ... + 9404463.

It is an arithmetic number, because the mean of its divisors is an integer number (96920927740).

Almost surely, 2^{2649289193388} is an apocalyptic number.

It is an amenable number.

2649289193388 is an abundant number, since it is smaller than the sum of its proper divisors (4329017603892).

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

2649289193388 is a wasteful number, since it uses less digits than its factorization.

2649289193388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18523047 (or 18523042 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 72.

The spelling of 2649289193388 in words is "two trillion, six hundred forty-nine billion, two hundred eighty-nine million, one hundred ninety-three thousand, three hundred eighty-eight".