33779819697 has 8 divisors (see below), whose sum is σ = 48504356544. Its totient is φ = 20787581328.

The previous prime is 33779819683. The next prime is 33779819713. The reversal of 33779819697 is 79691897733.

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

It is a de Polignac number, because none of the positive numbers 2^k-33779819697 is a prime.

It is a super-2 number, since 2×33779819697² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33779819797) 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, 433074573 + ... + 433074650.

It is an arithmetic number, because the mean of its divisors is an integer number (6063044568).

Almost surely, 2^33779819697 is an apocalyptic number.

It is an amenable number.

33779819697 is a deficient number, since it is larger than the sum of its proper divisors (14724536847).

33779819697 is a wasteful number, since it uses less digits than its factorization.

33779819697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866149239.

The product of its digits is 108020304, while the sum is 69.

The spelling of 33779819697 in words is "thirty-three billion, seven hundred seventy-nine million, eight hundred nineteen thousand, six hundred ninety-seven".