748744447847 has 4 divisors (see below), whose sum is σ = 816812124936. Its totient is φ = 680676770760.

The previous prime is 748744447831. The next prime is 748744447921.

748744447847 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 748744447847 - 2⁴ = 748744447831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748744447547) 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, 34033838528 + ... + 34033838549.

It is an arithmetic number, because the mean of its divisors is an integer number (204203031234).

Almost surely, 2^748744447847 is an apocalyptic number.

748744447847 is a deficient number, since it is larger than the sum of its proper divisors (68067677089).

748744447847 is a wasteful number, since it uses less digits than its factorization.

748744447847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68067677088.

The product of its digits is 629407744, while the sum is 68.

The spelling of 748744447847 in words is "seven hundred forty-eight billion, seven hundred forty-four million, four hundred forty-seven thousand, eight hundred forty-seven".