688262796049 has 8 divisors (see below), whose sum is σ = 710649625088. Its totient is φ = 665887517280.

The previous prime is 688262796047. The next prime is 688262796079. The reversal of 688262796049 is 940697262886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 688262796049 - 2¹ = 688262796047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (688262796041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2766372 + ... + 3004885.

It is an arithmetic number, because the mean of its divisors is an integer number (88831203136).

Almost surely, 2^688262796049 is an apocalyptic number.

It is an amenable number.

688262796049 is a deficient number, since it is larger than the sum of its proper divisors (22386829039).

688262796049 is a wasteful number, since it uses less digits than its factorization.

688262796049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775135.

The product of its (nonzero) digits is 125411328, while the sum is 67.

The spelling of 688262796049 in words is "six hundred eighty-eight billion, two hundred sixty-two million, seven hundred ninety-six thousand, forty-nine".