784340248749 has 4 divisors (see below), whose sum is σ = 1045786998336. Its totient is φ = 522893499164.

The previous prime is 784340248709. The next prime is 784340248751. The reversal of 784340248749 is 947842043487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 784340248749 - 2⁸ = 784340248493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 784340248692 and 784340248701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (784340248709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130723374789 + ... + 130723374794.

It is an arithmetic number, because the mean of its divisors is an integer number (261446749584).

Almost surely, 2^784340248749 is an apocalyptic number.

It is an amenable number.

784340248749 is a deficient number, since it is larger than the sum of its proper divisors (261446749587).

784340248749 is a wasteful number, since it uses less digits than its factorization.

784340248749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261446749586.

The product of its (nonzero) digits is 43352064, while the sum is 60.

The spelling of 784340248749 in words is "seven hundred eighty-four billion, three hundred forty million, two hundred forty-eight thousand, seven hundred forty-nine".