69688478683 has 4 divisors (see below), whose sum is σ = 71171212320. Its totient is φ = 68205745048.

The previous prime is 69688478659. The next prime is 69688478687. The reversal of 69688478683 is 38687488696.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69688478683 is a prime.

It is a super-2 number, since 2×69688478683² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69688478687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741366748 + ... + 741366841.

It is an arithmetic number, because the mean of its divisors is an integer number (17792803080).

Almost surely, 2^69688478683 is an apocalyptic number.

69688478683 is a deficient number, since it is larger than the sum of its proper divisors (1482733637).

69688478683 is a wasteful number, since it uses less digits than its factorization.

69688478683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482733636.

The product of its digits is 668860416, while the sum is 73.

The spelling of 69688478683 in words is "sixty-nine billion, six hundred eighty-eight million, four hundred seventy-eight thousand, six hundred eighty-three".