826669626742 has 16 divisors (see below), whose sum is σ = 1295987585760. Its totient is φ = 394967639808.

The previous prime is 826669626733. The next prime is 826669626787. The reversal of 826669626742 is 247626966628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73463058 + ... + 73474309.

It is an arithmetic number, because the mean of its divisors is an integer number (80999224110).

Almost surely, 2^826669626742 is an apocalyptic number.

826669626742 is a deficient number, since it is larger than the sum of its proper divisors (469317959018).

826669626742 is a wasteful number, since it uses less digits than its factorization.

826669626742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146937495.

The product of its digits is 125411328, while the sum is 64.

The spelling of 826669626742 in words is "eight hundred twenty-six billion, six hundred sixty-nine million, six hundred twenty-six thousand, seven hundred forty-two".