2649463540794 has 144 divisors (see below), whose sum is σ = 6745363215552. Its totient is φ = 749328765696.

The previous prime is 2649463540771. The next prime is 2649463540883. The reversal of 2649463540794 is 4970453649462.

2649463540794 is a `hidden beast` number, since 2 + 6 + 49 + 46 + 3 + 540 + 7 + 9 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 300968397 + ... + 300977199.

It is an arithmetic number, because the mean of its divisors is an integer number (46842800108).

Almost surely, 2^{2649463540794} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2649463540794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3372681607776).

2649463540794 is an abundant number, since it is smaller than the sum of its proper divisors (4095899674758).

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

2649463540794 is a wasteful number, since it uses less digits than its factorization.

2649463540794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241 (or 12231 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 63.

The spelling of 2649463540794 in words is "two trillion, six hundred forty-nine billion, four hundred sixty-three million, five hundred forty thousand, seven hundred ninety-four".