7648742478467 has 4 divisors (see below), whose sum is σ = 7648754139096. Its totient is φ = 7648730817840.

The previous prime is 7648742478437. The next prime is 7648742478491.

It is a happy number.

7648742478467 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7648742478467 - 2¹² = 7648742474371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7648742478394 and 7648742478403.

It is not an unprimeable number, because it can be changed into a prime (7648742478437) 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, 4783778 + ... + 6179159.

It is an arithmetic number, because the mean of its divisors is an integer number (1912188534774).

Almost surely, 2^{7648742478467} is an apocalyptic number.

7648742478467 is a deficient number, since it is larger than the sum of its proper divisors (11660629).

7648742478467 is a wasteful number, since it uses less digits than its factorization.

7648742478467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11660628.

The product of its digits is 2832334848, while the sum is 74.

The spelling of 7648742478467 in words is "seven trillion, six hundred forty-eight billion, seven hundred forty-two million, four hundred seventy-eight thousand, four hundred sixty-seven".