746831138647 has 4 divisors (see below), whose sum is σ = 814724878536. Its totient is φ = 678937398760.

The previous prime is 746831138611. The next prime is 746831138719.

746831138647 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 746831138647 - 2³⁵ = 712471400279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 746831138591 and 746831138600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746831138047) 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, 33946869928 + ... + 33946869949.

It is an arithmetic number, because the mean of its divisors is an integer number (203681219634).

Almost surely, 2^746831138647 is an apocalyptic number.

746831138647 is a deficient number, since it is larger than the sum of its proper divisors (67893739889).

746831138647 is a wasteful number, since it uses less digits than its factorization.

746831138647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67893739888.

The product of its digits is 16257024, while the sum is 58.

The spelling of 746831138647 in words is "seven hundred forty-six billion, eight hundred thirty-one million, one hundred thirty-eight thousand, six hundred forty-seven".