2647399949904 has 160 divisors (see below), whose sum is σ = 7379157417984. Its totient is φ = 815485777920.

The previous prime is 2647399949867. The next prime is 2647399949959. The reversal of 2647399949904 is 4099499937462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20229609 + ... + 20360055.

Almost surely, 2^{2647399949904} is an apocalyptic number.

2647399949904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2647399949904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3689578708992).

2647399949904 is an abundant number, since it is smaller than the sum of its proper divisors (4731757468080).

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

2647399949904 is a wasteful number, since it uses less digits than its factorization.

2647399949904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131105 (or 131099 counting only the distinct ones).

The product of its (nonzero) digits is 952342272, while the sum is 75.

The spelling of 2647399949904 in words is "two trillion, six hundred forty-seven billion, three hundred ninety-nine million, nine hundred forty-nine thousand, nine hundred four".