2648388749409 has 24 divisors (see below), whose sum is σ = 4120627492800. Its totient is φ = 1629417035232.

The previous prime is 2648388749323. The next prime is 2648388749437. The reversal of 2648388749409 is 9049478838462.

2648388749409 is a `hidden beast` number, since 2 + 64 + 83 + 8 + 87 + 4 + 9 + 409 = 666.

It is not a de Polignac number, because 2648388749409 - 2⁹ = 2648388748897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2648388744409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1973109 + ... + 3031490.

It is an arithmetic number, because the mean of its divisors is an integer number (171692812200).

Almost surely, 2^{2648388749409} is an apocalyptic number.

It is an amenable number.

2648388749409 is a deficient number, since it is larger than the sum of its proper divisors (1472238743391).

2648388749409 is a wasteful number, since it uses less digits than its factorization.

2648388749409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009141 (or 5009138 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 72.

The spelling of 2648388749409 in words is "two trillion, six hundred forty-eight billion, three hundred eighty-eight million, seven hundred forty-nine thousand, four hundred nine".